[cayugabirds-l] Crows and toads

[Geo Kloppel]

Speaking of migrations, the toads’ annual pool party at my pond in West Danby 
is in full swing, a good 2 - 3 weeks ahead of schedule. (Over the past 14 years 
I’ve come to expect their gathering to occur in the very last days of April / 
the first week of May)

For years the local Crows harvested toads in a gruesome slaughter right on the 
dike, slitting the poisonous skins and taking only some internal organ, perhaps 
the liver. In more recent years I’ve watched them carry off entire toads, 
presumably to conduct the evisceration elsewhere, perhaps even at nest-side. 
Yesterday I could tell that the Crows are well aware of the gathering, but I 
haven’t yet seen them take any toads. Perhaps it’s too early in their own 
breeding season for them to need this potentially poisonous resource?

The bears are up and about.

-Geo


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Re:[cayugabirds-l] crows nesting

[Martha Fischer]

almost a confirmed breeder!!!

From: bounce-125456663-3494...@list.cornell.edu 
 on behalf of Deb Grantham 

Sent: Friday, March 12, 2021 12:21 PM
To: CAYUGABIRDS-L 
Subject: [cayugabirds-l] crows nesting


Pair of crows building a nest in big silver maple right next to my house. I 
think they started 2 days ago. Have had several busy periods in that time. I 
hope they stick with it.



I need to plant some tiny tree seedlings under the drip line of that tree. Hope 
it won’t disturb them too much.



Sheffield Road, Ithaca/Enfield town line.



Deb



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[cayugabirds-l] crows nesting

[Deb Grantham]

Pair of crows building a nest in big silver maple right next to my house. I 
think they started 2 days ago. Have had several busy periods in that time. I 
hope they stick with it.

I need to plant some tiny tree seedlings under the drip line of that tree. Hope 
it won't disturb them too much.

Sheffield Road, Ithaca/Enfield town line.

Deb


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Re: [cayugabirds-l] Crows a nesting

[Geo Kloppel]

Speaking of Crows, I was out in my driveway at 10:30 last night, when a distant 
bunch of Crows began doing something that sounded like mobbing. I couldn’t 
remember ever hearing them make such a ruckus at night. I thought of Great 
Horned Owls, and tree climbers like raccoons or fishers. The Crows kept it up 
about five minutes, then grew quiet. A coyote gave about four long lone-howls 
from the same general direction, then silence returned under the bright 
moonlight.

-Geo


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[cayugabirds-l] Crows a nesting

[anneb . clark]

Active nest building by at least two families. (Salem area).  All reports 
appreciated!  

Anne and the Crowers. 

Sent from my iPhone
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Re:[cayugabirds-l] Crows at my feeders

[Bill Evans]

Dozens of crows perched atop sumac branches eating berries near Wal-Mart 
yesterday.
Bill E
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Re: [cayugabirds-l] Crows at my feeders

[Geo Kloppel]

We offer food year round to a small group of 3-5 Crows in our yard. We’ve 
actually been missing them recently. The lack of snow following hunting season 
made for easy access to discarded deer carcasses and parts (common in our 
neighborhood), as we several times observed. Even though we have a foot of new 
snow, I guess they still know where the carcasses are.

-Geo

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Re: [cayugabirds-l] Crows at my feeders

[Alicia]

We haven't had any so far this year, but some years small flocks - 
usually between 3 and 8 - they swoop in and entertain us when the snow 
is deep.   At least one figured out how to land on edge of our hopper 
feeder - s/he had to fly in carefully from the side, ducking under the 
overhang, just fitting by scrunching down & clinging onto the narrow 
seed tray, parallel to it.  Although they are sitting in most of the 
tray, they still have room to eat from the very end of it.  No way to 
know if many different crows mastered that move and did it in rotation 
or just one, but it is an impressive feat of athleticism.  (After flying 
in from the side for several days, s/he/they decided it was easier to 
start on the roof and jump off from there, ducking under the overhang 
and simultaneously grabbing the feed tray, to arrive in the same 
position - which seems even harder when observed.)

Alicia


On 1/21/2019 12:24 PM, anneb.cl...@gmail.com wrote:
> And deep snowy.  They can deal with cold if they can reach the ground 
> to forage. Bet the thousands that have been foraging nearer Syracuse 
> and Auburn are finding it VERY challenging.
>
> Sent from my iPhone
>
> On Jan 21, 2019, at 9:40 AM, Rachel   > wrote:
>
>> Crows (4 to 12 at a time, who knows if they are the same birds, with 
>> more in the trees) have ascended upon my bird feeders, eating spilled 
>> seed on the ground. I've never had crows as a feeder bird before, 
>> although we have many around our grain farm. Pretty impressive; they 
>> look huge next to the other birds! They're very flighty, and easily 
>> spooked. I guess now we know it's cold!
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Re: [cayugabirds-l] Crows at my feeders

[anneb . clark]

And deep snowy.  They can deal with cold if they can reach the ground to 
forage. Bet the thousands that have been foraging nearer Syracuse and Auburn 
are finding it VERY challenging. 

Sent from my iPhone

> On Jan 21, 2019, at 9:40 AM, Rachel   wrote:
> 
> Crows (4 to 12 at a time, who knows if they are the same birds, with more in 
> the trees) have ascended upon my bird feeders, eating spilled seed on the 
> ground. I've never had crows as a feeder bird before, although we have many 
> around our grain farm. Pretty impressive; they look huge next to the other 
> birds! They're very flighty, and easily spooked. I guess now we know it's 
> cold!
> --
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Re: [cayugabirds-l] Crows at my feeders

[Donna Lee Scott]

I always have our local crow families at or below my feeders, since I purposely 
scatter seeds on ground, too, & especially under sheltering bushes.
A lot of birds prefer feeding on ground or deck floor, probably cause it is 
more natural to them.
Of course this means I feed a lot of squirrels too!

Donna Scott
Lansing
Sent from my iPhone

On Jan 21, 2019, at 9:51 AM, Jae Sullivan 
mailto:blueheron...@yahoo.com>> wrote:

I have been having the same experience...downtown feeders on the street, 
usually populated with House Sparrows and not much else  the birds are 
HUGEBlue Jays, Starlings, a Robin, fighting for seed.

Delightful to watch.

Jae


On Monday, January 21, 2019, 9:40:53 AM EST, Rachel Lodder 
mailto:rachel.lod...@outlook.com>> wrote:


Crows (4 to 12 at a time, who knows if they are the same birds, with more in 
the trees) have ascended upon my bird feeders, eating spilled seed on the 
ground. I've never had crows as a feeder bird before, although we have many 
around our grain farm. Pretty impressive; they look huge next to the other 
birds! They're very flighty, and easily spooked. I guess now we know it's cold!
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Re: [cayugabirds-l] Crows at my feeders

[Jae Sullivan]

I have been having the same experience...downtown feeders on the street, 
usually populated with House Sparrows and not much else  the birds are 
HUGEBlue Jays, Starlings, a Robin, fighting for seed.
Delightful to watch.
Jae 

On Monday, January 21, 2019, 9:40:53 AM EST, Rachel Lodder 
 wrote:  
 
  Crows (4 to 12 at a time, who knows if they are the same birds, with more in 
the trees) have ascended upon my bird feeders, eating spilled seed on the 
ground. I've never had crows as a feeder bird before, although we have many 
around our grain farm. Pretty impressive; they look huge next to the other 
birds! They're very flighty, and easily spooked. I guess now we know it's 
cold!-- Cayugabirds-L List Info: Welcome and Basics Rules and Information 
Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds 
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[cayugabirds-l] Crows at my feeders

[Rachel Lodder]

Crows (4 to 12 at a time, who knows if they are the same birds, with more in 
the trees) have ascended upon my bird feeders, eating spilled seed on the 
ground. I've never had crows as a feeder bird before, although we have many 
around our grain farm. Pretty impressive; they look huge next to the other 
birds! They're very flighty, and easily spooked. I guess now we know it's cold!

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[cayugabirds-l] Crows preying on toads

[Geo Kloppel]

American Toads began returning to my pond two nights ago for their annual 
breeding event. Their night singing is really delightful (if you care for that 
sort of thing), but they do run the risk of daytime predation as they cross the 
grassy dike. The predators are American Crows. The toads were undisturbed 
yesterday, but this morning a saw from a distance that one Crow was busy down 
on the dike. I went down a little later to see what might remain in the grass. 
There were some entrails and lots of tiny unlaid eggs in the grass, but the 
familiar disemboweled corpse was not to be seen. The toads are singing now in 
the daylight, and more are heading toward the pond...

-Geo



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[cayugabirds-l] Crows and Cooper’s Hawk

[Geo Kloppel]

Three Crows, regulars at my feeding station, are resting quietly on their usual 
perches in an ash tree. They’re about 30 feet up, and the scene looks just like 
any other winter day, except that an adult Cooper’s Hawk is perched about ten 
feet below them. Been there for 15 minutes!

The Crows are not making a fuss, and it almost looks like the Coop is 
“pretending” to be one of them, using them as cover while waiting for small 
birds to return to the sunflower hopper just below.

A fourth Crow has flown in, and one of the others dropped down toward the 
ground feeding area, as if to grab a morsel, but thought better of it, I guess.

-Geo



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[cayugabirds-l] Crows, WNV and another plea for information

[AB Clark]

HI Everyone,

I hope this isn’t overuse of the List to ask for help:our banded crow 
population in and around Ithaca is suffering from the WNV plague—again, and 
strongly.  We are losing tagged and untagged-but-known family members.  Since 
birds also travel to forage at this time of year, we are trying hard to 
document whether a bird ostensibly “seen looking sick” is really dead.We 
are collaborating with the Wildlife Health Unit and are able to get them tested 
to confirm whether they died of WNV.

So—we really appreciate any alerts to crows seen dead or looking sick or “odd” 
in and near Ithaca, especially around Cayuga Heights, the Cornell Campus,  
Forest Home area, the Pine Tree-Mitchell-Ellis Hollow areas,  Sapsucker Woods 
road across to Brown and the Airport areas.  I am only too happy to investigate 
a false alarm, rather than miss a sick crow that then “disappears”, cause 
unknown.  It was really helpful that several people alerted us to a dying crow 
at Boces last week, which I was able to find the next morning. 

Currently, we are missing purple-tagged (white letters) crows “PC” (just N of 
Boces) and “SZ” (Lexington-Burleigh area) and an untagged but banded crow in 
the vicinity of Hanshaw between Kay St and Orchard, within this past week.  Up 
to 5 unbanded crows have disappeared in the last few weeks, after other family 
members died—along Warren on both sides of 13. 

Thanks for any help—emails to Kevin or I (best my academic email  
acl...@binghamton.edu ) or texts/calls to my cell 
phone below are all fine.  Suzanne Broderick (smb4...@aol.com) will also take 
the info and make sure reports were investigated. 

Anne
 
Anne B Clark
147 Hile School Rd
Freeville, NY 13068
607-222-0905
anneb.cl...@gmail.com






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[cayugabirds-l] crows

[Bill Mcaneny]

Between 300 and 400 Crows (a scene from "The Birds") landed on our field
next to Rte 89 (the Boulevard ) about 15 minutes ago and they are still
there.  They walk thru the grass, last mowed in July, searching for some
succulent prey.  There is no snow on the field so they have the whole place
to themselves.  I took a couple of fotos but the bulk of the flock can't be
seen due to trees, barns, etc.

Bill McAneny, TBurg


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[cayugabirds-l] crows

[Judith Jones]

Flew into the area bounded by Plain, Center an North Titus abt 4:45, 
rested and moved on - many still there.



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Re: [cayugabirds-l] Crows vs TVs

[AB Clark]

Concerted attacks (vs a couple of young crows harrassing vultures) is unusual!  
 But we are now very interested in where roosts are actually occuring!  Our 
studies of roosts and Nitrogen cycling are ongoing.

You are right, the “Migrants” did arrive…about 10 days ago.  The roost in 
Auburn went from 0 to 20K within days; there is a flock regularly gathering 
around noon at Munson Rd x 34 area and moving field to field…last time I could 
count, I know there were over 800 and I certainly couldn’t see all the fields 
they were using.  

Our local crows have been much more circumspect.  Except for a very regular 
flock of fish crows, they are using the Compost site very little, although our 
two radio-tagged crows are always in the general vicinity of Stevenson x Turkey 
Hill, And a few times in last 3 weeks,  there has been a flock of 100-200 with 
a few tagged birds up on Mt Pleasant, near Mineah.  Before Migrant Arrival, I 
had a flock of about 200 with tagged locals near Munson Rd along 34, but not 
since.  (Don’t mix with the winter people??)

Last Sunday, I had one very large, completely no-tags flock of 500-800 birds at 
the Compost once,  swirling confusedly as it got toward dusk, as if they were 
uncertain where to go.  I think they finally went off toward downtown, maybe 
the Ithaca College area.

So I would be much interested to know about any large foraging or roosting 
aggregations, or even where early morning crows seem to be coming from.

cheers,

Anne

> On Nov 12, 2015, at 11:51 AM, Chris R. Pelkie  
> wrote:
> 
> I mentioned seeing my first of season ‘big’ crow assemblage at the CBC 
> meeting last week, of about 100 American Crows doing small wheelies in a 
> large group swirling over my house (I first thought it was gulls, in fact).
> 
> Over the last week, I’ve seen similar numbers streaming over at dusk, 
> probably from Lansing corn fields to Ithaca/Northeast area.
> 
> This morning, I had a bird-a-palooza at 645AM while walking the dog. As I 
> stepped out, the cawing was loud, continuous, and numerous. Looking up in 
> early dawn against gray overcast, I estimated 200 AMCRs swirling and 
> attacking about 16 Turkey Vultures (this is unusual, of course).
> The TVs were clearly not enjoying this at all, and probably saying “Mellow 
> out, dudes! What’s up with this?”. But crows were hitting the TVs and small 
> groups chasing individual TVs around in a giant swirling mass of black wings.
> The illusion of a WWII bomber-fighter sky battle came to mind.
> 
> I suspect that the crows were roosting in the same trees around Asbury 
> Cemetery as the TVs have used for several years, and both groups woke up 
> about the same time, probably when a near-sighted crow with a short temper 
> jumped the first TV by accident thinking it was one of those ‘other’ raptors 
> it should be attacking, then the cascade began of more crows joining in and 
> more TVs freaking out and going from tree to sky only to be attacked 
> themselves. Just my hypothesis.
> 
> ChrisP
> __
>  
> Chris Pelkie
> Information/Data Manager; IT Support
> Bioacoustics Research Program
> Cornell Lab of Ornithology
> 159 Sapsucker Woods Road
> Ithaca, NY 14850
> 
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[cayugabirds-l] Crows vs TVs

[Chris R. Pelkie]

I mentioned seeing my first of season ‘big’ crow assemblage at the CBC meeting 
last week, of about 100 American Crows doing small wheelies in a large group 
swirling over my house (I first thought it was gulls, in fact).

Over the last week, I’ve seen similar numbers streaming over at dusk, probably 
from Lansing corn fields to Ithaca/Northeast area.

This morning, I had a bird-a-palooza at 645AM while walking the dog. As I 
stepped out, the cawing was loud, continuous, and numerous. Looking up in early 
dawn against gray overcast, I estimated 200 AMCRs swirling and attacking about 
16 Turkey Vultures (this is unusual, of course).
The TVs were clearly not enjoying this at all, and probably saying “Mellow out, 
dudes! What’s up with this?”. But crows were hitting the TVs and small groups 
chasing individual TVs around in a giant swirling mass of black wings.
The illusion of a WWII bomber-fighter sky battle came to mind.

I suspect that the crows were roosting in the same trees around Asbury Cemetery 
as the TVs have used for several years, and both groups woke up about the same 
time, probably when a near-sighted crow with a short temper jumped the first TV 
by accident thinking it was one of those ‘other’ raptors it should be 
attacking, then the cascade began of more crows joining in and more TVs 
freaking out and going from tree to sky only to be attacked themselves. Just my 
hypothesis.

ChrisP
__

Chris Pelkie
Information/Data Manager; IT Support
Bioacoustics Research Program
Cornell Lab of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850


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[cayugabirds-l] Crows

[Carol Keeler]

I read that crow nestlings were returned to their nest.  What I'd like to know 
is, how do the parents respond to this?  Do they seem to know you are helping 
them, since they are such smart birds? Or do they see it as an invasion and 
attack the person returning the babes.  Does it vary depending on the crows' 
personality?  I would expect there is always a crow watching the nest.

Sent from my iPad
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Re: [cayugabirds-l] Crows like toad liver

[Lindsay Goodloe]

We also have a pond with many (>100) breeding American toads, and we've
noticed crows lurking about, though we haven't actually observed predation.
One possible reason for the crows' preference for the liver is that the
parotid glands and skin of the toad produce bufotoxin, which may be
poisonous, or at least distasteful, to them. They can probably largely avoid
the toxin by feeding only on easily extractable morsels from the viscera,
especially the liver.

Lindsay Goodloe


On 5/6/15 1:56 PM, "Geo Kloppel"  wrote:

> I guess it's an element of local Crow culture, maybe even limited to
> particular families who have toad ponds within their territories and pass the
> trick down the generations.
> 
> -Geo Kloppel
> 
> On May 6, 2015, at 1:31 PM, Melanie Uhlir  wrote:
> 
>> Very interesting. But I'm sad about the toad slaughter. I'm glad I've never
>> noticed this in person!
>> 
>> I guess the toad populations are able to survive this seasonal devastation.
>> Great White Sharks take advantage of seal breeding season in the same way. I
>> think the sharks eat the whole seal though. Crows are gourmands. Or maybe
>> there's a specific nutritional benefit to eating the toads' livers.
>> 
>> On 5/5/2015 8:27 PM, Geo Kloppel wrote:
>>> I did a little reading on the subject, and it seems that Crows, being very
>>> intelligent, sometimes develop local traditions in which they annually take
>>> advantage of these pool parties to feast on toad livers.
>>> 
>>> This has been happening for years at my pond!
>>> 
>>> -Geo Kloppel
>>> --
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> 
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Re: [cayugabirds-l] Crows like toad liver

[Geo Kloppel]

I guess it's an element of local Crow culture, maybe even limited to particular 
families who have toad ponds within their territories and pass the trick down 
the generations.

-Geo Kloppel

On May 6, 2015, at 1:31 PM, Melanie Uhlir  wrote:

> Very interesting. But I'm sad about the toad slaughter. I'm glad I've never 
> noticed this in person!
> 
> I guess the toad populations are able to survive this seasonal devastation. 
> Great White Sharks take advantage of seal breeding season in the same way. I 
> think the sharks eat the whole seal though. Crows are gourmands. Or maybe 
> there's a specific nutritional benefit to eating the toads' livers.
> 
> On 5/5/2015 8:27 PM, Geo Kloppel wrote:
>> I did a little reading on the subject, and it seems that Crows, being very 
>> intelligent, sometimes develop local traditions in which they annually take 
>> advantage of these pool parties to feast on toad livers.
>> 
>> This has been happening for years at my pond!
>> 
>> -Geo Kloppel
>> --
>> 
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Re: [cayugabirds-l] Crows like toad liver

[Melanie Uhlir]

Very interesting. But I'm sad about the toad slaughter. I'm glad I've 
never noticed this in person!


I guess the toad populations are able to survive this seasonal 
devastation. Great White Sharks take advantage of seal breeding season 
in the same way. I think the sharks eat the whole seal though. Crows are 
gourmands. Or maybe there's a specific nutritional benefit to eating the 
toads' livers.


On 5/5/2015 8:27 PM, Geo Kloppel wrote:

I did a little reading on the subject, and it seems that Crows, being very 
intelligent, sometimes develop local traditions in which they annually take 
advantage of these pool parties to feast on toad livers.

This has been happening for years at my pond!

-Geo Kloppel
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[cayugabirds-l] Crows like toad liver

[Geo Kloppel]

I did a little reading on the subject, and it seems that Crows, being very 
intelligent, sometimes develop local traditions in which they annually take 
advantage of these pool parties to feast on toad livers.

This has been happening for years at my pond!

-Geo Kloppel
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Re: [cayugabirds-l] Crows chasing ravens

[Geo Kloppel]

Hi Ben,

I just saw the same thing a moment ago, except the Raven was flying _toward_ 
the L-P preserve (that is, leaving the nest area on a foraging mission), and 
very tightly harassed by a Crow, all the way down to the WD Fire Station area. 
Might even have been a member of the Crow family that's currently nesting in my 
yard, since the Ravens are passing back and forth right over the Crows' 
territory.

-Geo Kloppel

On Apr 11, 2015, at 12:33 PM, Benjamin Freeman  wrote:

> Hello,
> 
> I went for a nice walk this morning at Lindsay-Parsons Biodiversity Preserve. 
> Phoebes are back, Great Blue Herons are standing on nests near the fire 
> station (looked like seven occupied nests), fox sparrows and golden-crowned 
> kinglets were around, and a smattering of migrants passed overhead (common 
> loon, rough-legged hawk, and many turkey vultures).
> 
> One interesting observation I wanted to share: I was watching a raven fly 
> across the valley when a bird came out of nowhere to chase and harass the 
> raven. It was a crow, and the crow followed the raven until I lost sight of 
> the two corvids. I've seen small groups of crows harass solitary ravens many 
> times, but don't think I've previously seen a single crow harass a single 
> raven with such vigor.
> 
> Best,
> 
> Ben
> 
> -- 
> Benjamin Freeman
> Ph.D. candidate
> Department of Ecology and Evolutionary Biology
> Cornell University
> Ithaca, NY, USA
> benjamingfreeman.com
> 
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Re: [cayugabirds-l] Crows chasing ravens

[Geo Kloppel]

Crows are laying eggs now, so vigilance against thieves is in order (I imagine 
the extended family participates in this). The West Danby Ravens are 
accomplished egg-thieves, and now have nestlings to feed. Even the Canada Geese 
are apt to be robbed. I've found their huge empty eggshells on the forest floor 
in the vicinity of Ravens's nests, a mile or more from the nearest goose nests!

-Geo Kloppel

On Apr 11, 2015, at 12:33 PM, Benjamin Freeman  wrote:

> Hello,
> 
> I went for a nice walk this morning at Lindsay-Parsons Biodiversity Preserve. 
> Phoebes are back, Great Blue Herons are standing on nests near the fire 
> station (looked like seven occupied nests), fox sparrows and golden-crowned 
> kinglets were around, and a smattering of migrants passed overhead (common 
> loon, rough-legged hawk, and many turkey vultures).
> 
> One interesting observation I wanted to share: I was watching a raven fly 
> across the valley when a bird came out of nowhere to chase and harass the 
> raven. It was a crow, and the crow followed the raven until I lost sight of 
> the two corvids. I've seen small groups of crows harass solitary ravens many 
> times, but don't think I've previously seen a single crow harass a single 
> raven with such vigor.
> 
> Best,
> 
> Ben
> 
> -- 
> Benjamin Freeman
> Ph.D. candidate
> Department of Ecology and Evolutionary Biology
> Cornell University
> Ithaca, NY, USA
> benjamingfreeman.com
> 
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[cayugabirds-l] Crows chasing ravens

[Benjamin Freeman]

Hello,

I went for a nice walk this morning at Lindsay-Parsons Biodiversity
Preserve. Phoebes are back, Great Blue Herons are standing on nests near
the fire station (looked like seven occupied nests), fox sparrows and
golden-crowned kinglets were around, and a smattering of migrants passed
overhead (common loon, rough-legged hawk, and many turkey vultures).

One interesting observation I wanted to share: I was watching a raven fly
across the valley when a bird came out of nowhere to chase and harass the
raven. It was a crow, and the crow followed the raven until I lost sight of
the two corvids. I've seen small groups of crows harass solitary ravens
many times, but don't think I've previously seen a single crow harass a
single raven with such vigor.

Best,

Ben

-- 
Benjamin Freeman
Ph.D. candidate
Department of Ecology and Evolutionary Biology
Cornell University
Ithaca, NY, USA
benjamingfreeman.com

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RE: [cayugabirds-l] Crows, Eagle

[Donna Lee Scott]

Two times here I have seen what I think are “my” resident Crows flying very 
close to and harassing an immature Bald Eagle perched in one of my trees on the 
cliff overlooking the lake.

Donna Scott
Lansing,

From: bounce-118980691-15001...@list.cornell.edu 
[mailto:bounce-118980691-15001...@list.cornell.edu] On Behalf Of Geo Kloppel
Sent: Wednesday, March 25, 2015 2:34 PM
To: CAYUGABIRDS-L
Subject: [cayugabirds-l] Crows, Eagle

A pair of Crows was gathering nest material on the bank outside my kitchen 
window this morning.

Plenty of other Crows around, of course, but one that I saw downtown this 
afternoon is notable, because it was chasing a first year Bald Eagle over the 
Unitarian Church.
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[cayugabirds-l] Crows, Eagle

[Geo Kloppel]

A pair of Crows was gathering nest material on the bank outside my kitchen
window this morning.

Plenty of other Crows around, of course, but one that I saw downtown this
afternoon is worth noting, because it was chasing a first year Bald
Eagle over the Unitarian Church.

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[cayugabirds-l] Crows, Eagle

[Geo Kloppel]

A pair of Crows was gathering nest material on the bank outside my kitchen
window this morning.

Plenty of other Crows around, of course, but one that I saw downtown this
afternoon is notable, because it was chasing a first year Bald Eagle over
the Unitarian Church.

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[cayugabirds-l] Crows raid Wendy's trash can in Auburn 3/8/15

[job121830]

Most interesting to watch as 3 crows kept trying to get a bag containing French fries & other food items from the small trash bin at the front entrance to Wendy's today. Each would grab the bag & try to pull it from the partially enclosed bin. Occasionally one would shake loose a French fry & leave with it. Finally, after about 10 min. one managed to sit precariously on the bin lip edge with its head  under the "cover" & got a good grip on the bag & succeeded in pulling it out onto the ground. Whooppee!! Lots of food came tumbling out & the 3 crows were joined by several others who quickly grabbed the treats & flew away  and I didn't have a camera!!! I am often amazed at the cunning & intelligence of crows. "Our" 7 check out my garden compostevery day, several times a day & also look under the feeders for dropped seed. No matter how careful I am to try to stay hidden in the house while trying to observe them, the sentinel must see me & off they go. Now if only the squirrels were as observant & would leave!Several yrs. ago I was in front of the old P & C store in Auburn when I heard the very loud & persistent "call" of a gull. I saw none anywhere around.  NONE!  I happened to glance to the roof of the P & C & there was a crow, mimicking a gull. Next I heard a phone ringing & ringing but no one was in the parking lot. NO ONE!  I glanced up at the crow & saw he was making the noise. Since no other store where he sat on the roof was open, I came to the conclusion he was mimicking the ringing phone in the Sakura restaurant which he could hear but I couldn't. Has anyone else had such an experience?? It left me thrilled & amazed.Fritzie Blizzard, Union Springs, NY

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[cayugabirds-l] Crows & Mallards

[Donna Scott]

Britt Rd, off Blackrock rd. , north of Ledyard Rd. corn stubble field full of 
many A CROWS & MALLARDS. 100s. Flying & Hanging out together. 

Sent from my iPhone
Donna Scott
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Re: [cayugabirds-l] Crows that hunt?

[Anne Clark]

Crows will try to catch, kill and eat  small vertebrates that they come across. 
 Yes indeed, they are "hunting" all the time when they are foraging on the 
ground,in the sense that they are searching for live food like beetles, larvae 
(beetle or otherwise), earthworms and also, when they encounter them, small 
snakes, small rodents like voles, and shrews.  They are NOT specialized at 
killing and usually use some sort of stab at, flip it-jump back, etc technique 
to kill small rodents without getting bitten themselves.  Not sure how they 
kill snakes, but the only time I watched one with a garter snake, they held it 
down with feet and stabbed. 

So they search broadly for hidden prey and use very generalized techniques for 
capturing and killing anything they find.  

Their gardener-friendly eating of beetle and other larvae was noted many years 
ago, when it was calculated that they WAY offset any direct crop damage that 
they were accused of.

cheers,

Anne

On Jul 22, 2014, at 10:26 AM, Richard Tkachuck wrote:

> We appear to have a crow family in our yard--two young that mew begging for 
> food. While watching them, I think I saw an adult snag a vole and then eat 
> it. It did not share with a young. A little while later I saw the same adult 
> with a small (maybe 6 inch) snake in its beak. Ultimately, this was given to 
> one of the young which swallowed it head first. Question, do crows hunt for 
> live food?
> 
> Richard Tkachuck 
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[cayugabirds-l] Crows that hunt?

[Richard Tkachuck]

We appear to have a crow family in our yard--two young that mew begging for
food. While watching them, I think I saw an adult snag a vole and then eat
it. It did not share with a young. A little while later I saw the same
adult with a small (maybe 6 inch) snake in its beak. Ultimately, this was
given to one of the young which swallowed it head first. Question, do crows
hunt for live food?

Richard Tkachuck

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[cayugabirds-l] Crows eating toads

[Geo Kloppel]

Toads are converging on my pond for their annual get together, which seems to 
correspond closely with the arrival of Whip-poor-wills in the Cayuga basin. And 
the Crows are beginning to collect the annual toll of toad-flesh for the 
privilege of crossing the dike. From the remains, it seems they're careful not 
to eat the skins.

-Geo 
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Re: [cayugabirds-l] crows nesting

[Anne Clark]

Not too early...Kevin found a crow on Yellow Barn road incubating this past 
weekend and there are crows building all over Cayuga Heights. The family at the 
end of Sapsucker Woods Rd and Hanshaw is probably nearing completion of their 
nest.   The peak of many years for starting incubation  is about 5 April.  
However, they often build well before starting incubation--cradle before baby.  

That said...we are particularly interested in nests in rural areas.  Anyone who 
has one, please send Kevin or I locations, off list, especially if we can band 
the nestlings.   ALSO, anyone seeing tagged birds in their yards, or building 
anywhere--a note please!  We lost about 70+ tagged or known birds during the 
last two summers (Aug-October), due to West Nile virus and we expect our 
younger survivors (2-4 year olds--red, grey or dark green tags) to have lots of 
breeding opportunities.   

Thanks, 
anne


On Mar 20, 2014, at 12:11 PM, Susan Fast wrote:

> What I assume are two of our Yard crows have been working on a nest for about 
> a week.  It's approx. 60-70 feet up in a white pine and I can see parts of 
> the nest from our kitchen.  Earlier today, one carried a mouthful of twigs to 
> the site, then repeated this.  They took a break for a couple hours and just 
> now I watched one gathering coarse dead grass from the Yard.  After taking a 
> wad of this to the nest, it dropped down and got another mouthful; but spit 
> this out.  It walked to another spot, pulled up another mouthful, and spit 
> that out too.  It finally got a small wad of what appeared to be the center 
> stem from hickory leaves(which it was under), and delivered that to the nest. 
>  This seems a little early, but what do I know?
> 
> Steve Fast
> Brooktondale
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[cayugabirds-l] crows nesting

[Susan Fast]

What I assume are two of our Yard crows have been working on a nest for about a 
week.  It's approx. 60-70 feet up in a white pine and I can see parts of the 
nest from our kitchen.  Earlier today, one carried a mouthful of twigs to the 
site, then repeated this.  They took a break for a couple hours and just now I 
watched one gathering coarse dead grass from the Yard.  After taking a wad of 
this to the nest, it dropped down and got another mouthful; but spit this out.  
It walked to another spot, pulled up another mouthful, and spit that out too.  
It finally got a small wad of what appeared to be the center stem from hickory 
leaves(which it was under), and delivered that to the nest.  This seems a 
little early, but what do I know?

Steve Fast
Brooktondale

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Re: [cayugabirds-l] Crows on South Hill

[Ann Mitchell]

I agree, Linda. Muster seems quite appropriate. Thanks.


On Tue, Mar 4, 2014 at 1:11 PM,  wrote:

> Recently, I found 2 dead crows near each other.  I was surprised to find
> this.  Is this unusual?
>
>
> -Original Message-
> From: Linda Orkin 
> To: Sue Rakow 
> Cc: Anne Clark ; cayugabirds <
> Cayugabirds-L@cornell.edu>
> Sent: Tue, Mar 4, 2014 11:02 am
> Subject: Re: [cayugabirds-l] Crows on South Hill
>
>   Sue, thanks for enjoying the list and for being so eager to learn.  All
> of us who admire, respect and enjoy crows are trying to retire the
> collective noun of "murder" as it can either imply that crows are evil or
> that they should be murdered.  Another term could be Congress of crows
> (which in this day and age can also be pejorative) or can also be a
> Muster.  Which would seem appropriate especially at this time of year as
> they gather or when they all raucously mob a Great-horned Owl.  I like
> Muster, the definition is apropos.
>
>  Keep watching!!!
>
>  Linda Orkin
>  Ithaca, NY
>
>
> On Tue, Mar 4, 2014 at 10:52 AM, Sue Rakow  wrote:
>
>> This is very helpful information! Thank  you so much for the complete
>> picture. I am learning so much from being on this list serve. I am very
>> grateful!
>> Sue Rakow
>>
>>
>> On Tue, Mar 4, 2014 at 8:26 AM, Anne Clark  wrote:
>>
>>> These groups are "winter roosts", and they are nothing new in crow life.
>>>  Despite what urban residents sometimes think, crows didn't start gathering
>>> when we set out cities for them to use.  Roosting in groups at any time of
>>> year may offer safety in numbers from night predators, such as Great Horned
>>> Owls.
>>>
>>>  In winter, birds living in northern areas that usually have constant
>>> snow cover for months do migrate south--Canada, areas of New England.
>>>  Crows don't necessarily have a particular area they migrate TO.  They may
>>> go as far as an area that is usually ok for foraging, perhaps one that they
>>> are familiar with from previous migrations.  There they form flocks that
>>> are made up of migrants as well as wide-foraging locals.  If it gets
>>> unusually snowy and cold, they may move further south.  (We really don't
>>> know much of the repeat migratory routes of individual crows.  We do know
>>> that birds tagged in Ithaca in winter are then seen on territories in
>>> Canada, VT, New Hampshire in summer, and that some birds RAISED in Ithaca
>>> have been observed or shot in winter, in such places as Maryland, West VA,
>>> and Pennsylvania, as well as in Cortland, Auburn, Geneva)
>>>
>>>  In the winter flocks, birds are foraging in open fields and off
>>> familiar areas.  During foraging, flocks offer some safety in numbers to
>>> detect predators in day (hawks, hunters, whatever).  At night the flocks
>>> "flock up" still more in places that offer "good roosting sites", which
>>> probably includes wind breaks, places from which owls can be detected at
>>> night. So they are probably gathering both for safety in numbers and also
>>> because they all agree on what makes a good site.  Cities may offer fewer
>>> predators, but also the lights may allow them to see the predators.
>>>  Finally roosting in flocks that include birds that have sampled food
>>> sources widely may allow birds to find new food sources, perhaps by
>>> following the most assured and directed birds leaving the roost.
>>>
>>>  So--Upstate NY has its own crows and is ideally positioned for
>>> northern crows--so flocks become big.  They like the agricultural fields
>>> interspersed with trees and lots of running water sources (which may be
>>> important in cold winters)...and we also offer lots of smaller cities, with
>>> large groups of lit trees in their downtowns or college campuses. These
>>> seem to be attractive.
>>>
>>>  Mid-late March is the start of the breeding season and flocking crows
>>> will be returning to their breeding latitudes.  Our Ithaca pairs are
>>> already calling on territory during daytimes.
>>>
>>>  As I say, some of this story is surmised from the patterns, not pinned
>>> down with hard data on individuals!  We know what our tagged birds do, when
>>> we can follow them.  But we would love to have gps data coming in from our
>>> birds, such as the snowy owls and golden eagles give their researchers.
>>>  Bring on the Tiny Tags!
>>>
>>>  Anne
>>&

Re: [cayugabirds-l] Crows on South Hill

[jensdreamb]

Recently, I found 2 dead crows near each other.  I was surprised to find this.  
Is this unusual?



-Original Message-
From: Linda Orkin 
To: Sue Rakow 
Cc: Anne Clark ; cayugabirds 
Sent: Tue, Mar 4, 2014 11:02 am
Subject: Re: [cayugabirds-l] Crows on South Hill




Sue, thanks for enjoying the list and for being so eager to learn.  All of us 
who admire, respect and enjoy crows are trying to retire the collective noun of 
"murder" as it can either imply that crows are evil or that they should be 
murdered.  Another term could be Congress of crows (which in this day and age 
can also be pejorative) or can also be a Muster.  Which would seem appropriate 
especially at this time of year as they gather or when they all raucously mob a 
Great-horned Owl.  I like Muster, the definition is apropos.  


Keep watching!!!


Linda Orkin

Ithaca, NY




On Tue, Mar 4, 2014 at 10:52 AM, Sue Rakow  wrote:

This is very helpful information! Thank  you so much for the complete picture. 
I am learning so much from being on this list serve. I am very grateful!
Sue Rakow





On Tue, Mar 4, 2014 at 8:26 AM, Anne Clark  wrote:

These groups are "winter roosts", and they are nothing new in crow life.  
Despite what urban residents sometimes think, crows didn't start gathering when 
we set out cities for them to use.  Roosting in groups at any time of year may 
offer safety in numbers from night predators, such as Great Horned Owls.  


In winter, birds living in northern areas that usually have constant snow cover 
for months do migrate south--Canada, areas of New England.  Crows don't 
necessarily have a particular area they migrate TO.  They may go as far as an 
area that is usually ok for foraging, perhaps one that they are familiar with 
from previous migrations.  There they form flocks that are made up of migrants 
as well as wide-foraging locals.  If it gets unusually snowy and cold, they may 
move further south.  (We really don't know much of the repeat migratory routes 
of individual crows.  We do know that birds tagged in Ithaca in winter are then 
seen on territories in Canada, VT, New Hampshire in summer, and that some birds 
RAISED in Ithaca have been observed or shot in winter, in such places as 
Maryland, West VA, and Pennsylvania, as well as in Cortland, Auburn, Geneva)


In the winter flocks, birds are foraging in open fields and off familiar areas. 
 During foraging, flocks offer some safety in numbers to detect predators in 
day (hawks, hunters, whatever).  At night the flocks "flock up" still more in 
places that offer "good roosting sites", which probably includes wind breaks, 
places from which owls can be detected at night. So they are probably gathering 
both for safety in numbers and also because they all agree on what makes a good 
site.  Cities may offer fewer predators, but also the lights may allow them to 
see the predators.  Finally roosting in flocks that include birds that have 
sampled food sources widely may allow birds to find new food sources, perhaps 
by following the most assured and directed birds leaving the roost.


So--Upstate NY has its own crows and is ideally positioned for northern 
crows--so flocks become big.  They like the agricultural fields interspersed 
with trees and lots of running water sources (which may be important in cold 
winters)...and we also offer lots of smaller cities, with large groups of lit 
trees in their downtowns or college campuses. These seem to be attractive.


Mid-late March is the start of the breeding season and flocking crows will be 
returning to their breeding latitudes.  Our Ithaca pairs are already calling on 
territory during daytimes.


As I say, some of this story is surmised from the patterns, not pinned down 
with hard data on individuals!  We know what our tagged birds do, when we can 
follow them.  But we would love to have gps data coming in from our birds, such 
as the snowy owls and golden eagles give their researchers.  Bring on the Tiny 
Tags!


Anne



On Mar 4, 2014, at 7:19 AM, Sue Rakow wrote:




I observed the murder of crows on Sunday evening. It was stunning. I would like 
to know more about why they gather in such large groups. Are they on the move 
or are they local? Can anyone help me understand?
Thanks.
Sue Rakow


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Don't ask what your bird c

Re: [cayugabirds-l] Crows on South Hill

[Linda Orkin]

No according to ask.com it's an actual alternative.  Spread it far and wide.

Linda


On Tue, Mar 4, 2014 at 12:03 PM, J. Sullivan  wrote:

> MUSTER .
>
> Would that be only used among us locals?
>
> Jae
>
> On Mar 4, 2014, at 11:02 AM, Linda Orkin  wrote:
>
> Sue, thanks for enjoying the list and for being so eager to learn.  All of
> us who admire, respect and enjoy crows are trying to retire the collective
> noun of "murder" as it can either imply that crows are evil or that they
> should be murdered.  Another term could be Congress of crows (which in this
> day and age can also be pejorative) or can also be a Muster.  Which would
> seem appropriate especially at this time of year as they gather or when
> they all raucously mob a Great-horned Owl.  I like Muster, the definition
> is apropos.
>
> Keep watching!!!
>
> Linda Orkin
> Ithaca, NY
>
>
> On Tue, Mar 4, 2014 at 10:52 AM, Sue Rakow  wrote:
>
>> This is very helpful information! Thank  you so much for the complete
>> picture. I am learning so much from being on this list serve. I am very
>> grateful!
>> Sue Rakow
>>
>>
>> On Tue, Mar 4, 2014 at 8:26 AM, Anne Clark  wrote:
>>
>>> These groups are "winter roosts", and they are nothing new in crow life.
>>>  Despite what urban residents sometimes think, crows didn't start gathering
>>> when we set out cities for them to use.  Roosting in groups at any time of
>>> year may offer safety in numbers from night predators, such as Great Horned
>>> Owls.
>>>
>>> In winter, birds living in northern areas that usually have constant
>>> snow cover for months do migrate south--Canada, areas of New England.
>>>  Crows don't necessarily have a particular area they migrate TO.  They may
>>> go as far as an area that is usually ok for foraging, perhaps one that they
>>> are familiar with from previous migrations.  There they form flocks that
>>> are made up of migrants as well as wide-foraging locals.  If it gets
>>> unusually snowy and cold, they may move further south.  (We really don't
>>> know much of the repeat migratory routes of individual crows.  We do know
>>> that birds tagged in Ithaca in winter are then seen on territories in
>>> Canada, VT, New Hampshire in summer, and that some birds RAISED in Ithaca
>>> have been observed or shot in winter, in such places as Maryland, West VA,
>>> and Pennsylvania, as well as in Cortland, Auburn, Geneva)
>>>
>>> In the winter flocks, birds are foraging in open fields and off familiar
>>> areas.  During foraging, flocks offer some safety in numbers to detect
>>> predators in day (hawks, hunters, whatever).  At night the flocks "flock
>>> up" still more in places that offer "good roosting sites", which probably
>>> includes wind breaks, places from which owls can be detected at night. So
>>> they are probably gathering both for safety in numbers and also because
>>> they all agree on what makes a good site.  Cities may offer fewer
>>> predators, but also the lights may allow them to see the predators.
>>>  Finally roosting in flocks that include birds that have sampled food
>>> sources widely may allow birds to find new food sources, perhaps by
>>> following the most assured and directed birds leaving the roost.
>>>
>>> So--Upstate NY has its own crows and is ideally positioned for northern
>>> crows--so flocks become big.  They like the agricultural fields
>>> interspersed with trees and lots of running water sources (which may be
>>> important in cold winters)...and we also offer lots of smaller cities, with
>>> large groups of lit trees in their downtowns or college campuses. These
>>> seem to be attractive.
>>>
>>> Mid-late March is the start of the breeding season and flocking crows
>>> will be returning to their breeding latitudes.  Our Ithaca pairs are
>>> already calling on territory during daytimes.
>>>
>>> As I say, some of this story is surmised from the patterns, not pinned
>>> down with hard data on individuals!  We know what our tagged birds do, when
>>> we can follow them.  But we would love to have gps data coming in from our
>>> birds, such as the snowy owls and golden eagles give their researchers.
>>>  Bring on the Tiny Tags!
>>>
>>> Anne
>>>
>>> On Mar 4, 2014, at 7:19 AM, Sue Rakow wrote:
>>>
>>> I observed the murder of crows on Sunday evening. It was stunning. I
>>> would like to know more about why they gather in such large groups. Are
>>> they on the move or are they local? Can anyone help me understand?
>>> Thanks.
>>> Sue Rakow
>>> --
>>> *Cayugabirds-L List Info:*
>>> Welcome and Basics 
>>> Rules and Information 
>>> Subscribe, Configuration and 
>>> Leave
>>> *Archives:*
>>> The Mail 
>>> Archive
>>> Surfbirds 
>>> BirdingOnThe.Net 

Re: [cayugabirds-l] Crows on South Hill

[J. Sullivan]

MUSTER .

Would that be only used among us locals?

Jae 

> On Mar 4, 2014, at 11:02 AM, Linda Orkin  wrote:
> 
> Sue, thanks for enjoying the list and for being so eager to learn.  All of us 
> who admire, respect and enjoy crows are trying to retire the collective noun 
> of "murder" as it can either imply that crows are evil or that they should be 
> murdered.  Another term could be Congress of crows (which in this day and age 
> can also be pejorative) or can also be a Muster.  Which would seem 
> appropriate especially at this time of year as they gather or when they all 
> raucously mob a Great-horned Owl.  I like Muster, the definition is apropos.  
> 
> Keep watching!!!
> 
> Linda Orkin
> Ithaca, NY
> 
> 
>> On Tue, Mar 4, 2014 at 10:52 AM, Sue Rakow  wrote:
>> This is very helpful information! Thank  you so much for the complete 
>> picture. I am learning so much from being on this list serve. I am very 
>> grateful!
>> Sue Rakow
>> 
>> 
>>> On Tue, Mar 4, 2014 at 8:26 AM, Anne Clark  wrote:
>>> These groups are "winter roosts", and they are nothing new in crow life.  
>>> Despite what urban residents sometimes think, crows didn't start gathering 
>>> when we set out cities for them to use.  Roosting in groups at any time of 
>>> year may offer safety in numbers from night predators, such as Great Horned 
>>> Owls.  
>>> 
>>> In winter, birds living in northern areas that usually have constant snow 
>>> cover for months do migrate south--Canada, areas of New England.  Crows 
>>> don't necessarily have a particular area they migrate TO.  They may go as 
>>> far as an area that is usually ok for foraging, perhaps one that they are 
>>> familiar with from previous migrations.  There they form flocks that are 
>>> made up of migrants as well as wide-foraging locals.  If it gets unusually 
>>> snowy and cold, they may move further south.  (We really don't know much of 
>>> the repeat migratory routes of individual crows.  We do know that birds 
>>> tagged in Ithaca in winter are then seen on territories in Canada, VT, New 
>>> Hampshire in summer, and that some birds RAISED in Ithaca have been 
>>> observed or shot in winter, in such places as Maryland, West VA, and 
>>> Pennsylvania, as well as in Cortland, Auburn, Geneva)
>>> 
>>> In the winter flocks, birds are foraging in open fields and off familiar 
>>> areas.  During foraging, flocks offer some safety in numbers to detect 
>>> predators in day (hawks, hunters, whatever).  At night the flocks "flock 
>>> up" still more in places that offer "good roosting sites", which probably 
>>> includes wind breaks, places from which owls can be detected at night. So 
>>> they are probably gathering both for safety in numbers and also because 
>>> they all agree on what makes a good site.  Cities may offer fewer 
>>> predators, but also the lights may allow them to see the predators.  
>>> Finally roosting in flocks that include birds that have sampled food 
>>> sources widely may allow birds to find new food sources, perhaps by 
>>> following the most assured and directed birds leaving the roost.
>>> 
>>> So--Upstate NY has its own crows and is ideally positioned for northern 
>>> crows--so flocks become big.  They like the agricultural fields 
>>> interspersed with trees and lots of running water sources (which may be 
>>> important in cold winters)...and we also offer lots of smaller cities, with 
>>> large groups of lit trees in their downtowns or college campuses. These 
>>> seem to be attractive.
>>> 
>>> Mid-late March is the start of the breeding season and flocking crows will 
>>> be returning to their breeding latitudes.  Our Ithaca pairs are already 
>>> calling on territory during daytimes.
>>> 
>>> As I say, some of this story is surmised from the patterns, not pinned down 
>>> with hard data on individuals!  We know what our tagged birds do, when we 
>>> can follow them.  But we would love to have gps data coming in from our 
>>> birds, such as the snowy owls and golden eagles give their researchers.  
>>> Bring on the Tiny Tags!
>>> 
>>> Anne
>>> 
 On Mar 4, 2014, at 7:19 AM, Sue Rakow wrote:
 
 I observed the murder of crows on Sunday evening. It was stunning. I would 
 like to know more about why they gather in such large groups. Are they on 
 the move or are they local? Can anyone help me understand?
 Thanks.
 Sue Rakow
 --
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 Rules and Information
 Subscribe, Configuration and Leave
 Archives:
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 Surfbirds
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>> 
>> --
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Re: [cayugabirds-l] Crows on South Hill

[Linda Orkin]

Sue, thanks for enjoying the list and for being so eager to learn.  All of
us who admire, respect and enjoy crows are trying to retire the collective
noun of "murder" as it can either imply that crows are evil or that they
should be murdered.  Another term could be Congress of crows (which in this
day and age can also be pejorative) or can also be a Muster.  Which would
seem appropriate especially at this time of year as they gather or when
they all raucously mob a Great-horned Owl.  I like Muster, the definition
is apropos.

Keep watching!!!

Linda Orkin
Ithaca, NY


On Tue, Mar 4, 2014 at 10:52 AM, Sue Rakow  wrote:

> This is very helpful information! Thank  you so much for the complete
> picture. I am learning so much from being on this list serve. I am very
> grateful!
> Sue Rakow
>
>
> On Tue, Mar 4, 2014 at 8:26 AM, Anne Clark  wrote:
>
>> These groups are "winter roosts", and they are nothing new in crow life.
>>  Despite what urban residents sometimes think, crows didn't start gathering
>> when we set out cities for them to use.  Roosting in groups at any time of
>> year may offer safety in numbers from night predators, such as Great Horned
>> Owls.
>>
>> In winter, birds living in northern areas that usually have constant snow
>> cover for months do migrate south--Canada, areas of New England.  Crows
>> don't necessarily have a particular area they migrate TO.  They may go as
>> far as an area that is usually ok for foraging, perhaps one that they are
>> familiar with from previous migrations.  There they form flocks that are
>> made up of migrants as well as wide-foraging locals.  If it gets unusually
>> snowy and cold, they may move further south.  (We really don't know much of
>> the repeat migratory routes of individual crows.  We do know that birds
>> tagged in Ithaca in winter are then seen on territories in Canada, VT, New
>> Hampshire in summer, and that some birds RAISED in Ithaca have been
>> observed or shot in winter, in such places as Maryland, West VA, and
>> Pennsylvania, as well as in Cortland, Auburn, Geneva)
>>
>> In the winter flocks, birds are foraging in open fields and off familiar
>> areas.  During foraging, flocks offer some safety in numbers to detect
>> predators in day (hawks, hunters, whatever).  At night the flocks "flock
>> up" still more in places that offer "good roosting sites", which probably
>> includes wind breaks, places from which owls can be detected at night. So
>> they are probably gathering both for safety in numbers and also because
>> they all agree on what makes a good site.  Cities may offer fewer
>> predators, but also the lights may allow them to see the predators.
>>  Finally roosting in flocks that include birds that have sampled food
>> sources widely may allow birds to find new food sources, perhaps by
>> following the most assured and directed birds leaving the roost.
>>
>> So--Upstate NY has its own crows and is ideally positioned for northern
>> crows--so flocks become big.  They like the agricultural fields
>> interspersed with trees and lots of running water sources (which may be
>> important in cold winters)...and we also offer lots of smaller cities, with
>> large groups of lit trees in their downtowns or college campuses. These
>> seem to be attractive.
>>
>> Mid-late March is the start of the breeding season and flocking crows
>> will be returning to their breeding latitudes.  Our Ithaca pairs are
>> already calling on territory during daytimes.
>>
>> As I say, some of this story is surmised from the patterns, not pinned
>> down with hard data on individuals!  We know what our tagged birds do, when
>> we can follow them.  But we would love to have gps data coming in from our
>> birds, such as the snowy owls and golden eagles give their researchers.
>>  Bring on the Tiny Tags!
>>
>> Anne
>>
>> On Mar 4, 2014, at 7:19 AM, Sue Rakow wrote:
>>
>> I observed the murder of crows on Sunday evening. It was stunning. I
>> would like to know more about why they gather in such large groups. Are
>> they on the move or are they local? Can anyone help me understand?
>> Thanks.
>> Sue Rakow
>> --
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>> Leave
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RE: [cayugabirds-l] Crows on South Hill

[Kevin J. McGowan]

For those who don't know, I have had a set of web pages about crows up for 15 
years now, including http://www.birds.cornell.edu/crows/crowfaq.htm, which 
answers a lot of questions like these.

Best,

Kevin


Kevin J. McGowan, Ph.D.
Instructor
Home Study Course in Bird Biology
Investigating Behavior: Courtship and Rivalry in Birds
Cornell Lab of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850
k...@cornell.edu
607-254-2452

Do you know about our other distance-learning opportunities? Visit 
http://www.birds.cornell.edu/courses and learn about our comprehensive Home 
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of webinars<http://www.birds.cornell.edu/courses/home/webinars/>. Purchase the 
webinars here<http://store.birds.cornell.edu/category_s/55.htm>.


From: bounce-112890972-3493...@list.cornell.edu 
[mailto:bounce-112890972-3493...@list.cornell.edu] On Behalf Of Sue Rakow
Sent: Tuesday, March 04, 2014 10:52 AM
To: Anne Clark
Cc: CAYUGABIRDS-L
Subject: Re: [cayugabirds-l] Crows on South Hill

This is very helpful information! Thank  you so much for the complete picture. 
I am learning so much from being on this list serve. I am very grateful!
Sue Rakow

On Tue, Mar 4, 2014 at 8:26 AM, Anne Clark 
mailto:anneb.cl...@gmail.com>> wrote:
These groups are "winter roosts", and they are nothing new in crow life.  
Despite what urban residents sometimes think, crows didn't start gathering when 
we set out cities for them to use.  Roosting in groups at any time of year may 
offer safety in numbers from night predators, such as Great Horned Owls.

In winter, birds living in northern areas that usually have constant snow cover 
for months do migrate south--Canada, areas of New England.  Crows don't 
necessarily have a particular area they migrate TO.  They may go as far as an 
area that is usually ok for foraging, perhaps one that they are familiar with 
from previous migrations.  There they form flocks that are made up of migrants 
as well as wide-foraging locals.  If it gets unusually snowy and cold, they may 
move further south.  (We really don't know much of the repeat migratory routes 
of individual crows.  We do know that birds tagged in Ithaca in winter are then 
seen on territories in Canada, VT, New Hampshire in summer, and that some birds 
RAISED in Ithaca have been observed or shot in winter, in such places as 
Maryland, West VA, and Pennsylvania, as well as in Cortland, Auburn, Geneva)

In the winter flocks, birds are foraging in open fields and off familiar areas. 
 During foraging, flocks offer some safety in numbers to detect predators in 
day (hawks, hunters, whatever).  At night the flocks "flock up" still more in 
places that offer "good roosting sites", which probably includes wind breaks, 
places from which owls can be detected at night. So they are probably gathering 
both for safety in numbers and also because they all agree on what makes a good 
site.  Cities may offer fewer predators, but also the lights may allow them to 
see the predators.  Finally roosting in flocks that include birds that have 
sampled food sources widely may allow birds to find new food sources, perhaps 
by following the most assured and directed birds leaving the roost.

So--Upstate NY has its own crows and is ideally positioned for northern 
crows--so flocks become big.  They like the agricultural fields interspersed 
with trees and lots of running water sources (which may be important in cold 
winters)...and we also offer lots of smaller cities, with large groups of lit 
trees in their downtowns or college campuses. These seem to be attractive.

Mid-late March is the start of the breeding season and flocking crows will be 
returning to their breeding latitudes.  Our Ithaca pairs are already calling on 
territory during daytimes.

As I say, some of this story is surmised from the patterns, not pinned down 
with hard data on individuals!  We know what our tagged birds do, when we can 
follow them.  But we would love to have gps data coming in from our birds, such 
as the snowy owls and golden eagles give their researchers.  Bring on the Tiny 
Tags!

Anne

On Mar 4, 2014, at 7:19 AM, Sue Rakow wrote:

I observed the murder of crows on Sunday evening. It was stunning. I would like 
to know more about why they gather in such large groups. Are they on the move 
or are they local? Can anyone help me understand?
Thanks.
Sue Rakow
--
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Re: [cayugabirds-l] Crows on South Hill

[Sue Rakow]

This is very helpful information! Thank  you so much for the complete
picture. I am learning so much from being on this list serve. I am very
grateful!
Sue Rakow


On Tue, Mar 4, 2014 at 8:26 AM, Anne Clark  wrote:

> These groups are "winter roosts", and they are nothing new in crow life.
>  Despite what urban residents sometimes think, crows didn't start gathering
> when we set out cities for them to use.  Roosting in groups at any time of
> year may offer safety in numbers from night predators, such as Great Horned
> Owls.
>
> In winter, birds living in northern areas that usually have constant snow
> cover for months do migrate south--Canada, areas of New England.  Crows
> don't necessarily have a particular area they migrate TO.  They may go as
> far as an area that is usually ok for foraging, perhaps one that they are
> familiar with from previous migrations.  There they form flocks that are
> made up of migrants as well as wide-foraging locals.  If it gets unusually
> snowy and cold, they may move further south.  (We really don't know much of
> the repeat migratory routes of individual crows.  We do know that birds
> tagged in Ithaca in winter are then seen on territories in Canada, VT, New
> Hampshire in summer, and that some birds RAISED in Ithaca have been
> observed or shot in winter, in such places as Maryland, West VA, and
> Pennsylvania, as well as in Cortland, Auburn, Geneva)
>
> In the winter flocks, birds are foraging in open fields and off familiar
> areas.  During foraging, flocks offer some safety in numbers to detect
> predators in day (hawks, hunters, whatever).  At night the flocks "flock
> up" still more in places that offer "good roosting sites", which probably
> includes wind breaks, places from which owls can be detected at night. So
> they are probably gathering both for safety in numbers and also because
> they all agree on what makes a good site.  Cities may offer fewer
> predators, but also the lights may allow them to see the predators.
>  Finally roosting in flocks that include birds that have sampled food
> sources widely may allow birds to find new food sources, perhaps by
> following the most assured and directed birds leaving the roost.
>
> So--Upstate NY has its own crows and is ideally positioned for northern
> crows--so flocks become big.  They like the agricultural fields
> interspersed with trees and lots of running water sources (which may be
> important in cold winters)...and we also offer lots of smaller cities, with
> large groups of lit trees in their downtowns or college campuses. These
> seem to be attractive.
>
> Mid-late March is the start of the breeding season and flocking crows will
> be returning to their breeding latitudes.  Our Ithaca pairs are already
> calling on territory during daytimes.
>
> As I say, some of this story is surmised from the patterns, not pinned
> down with hard data on individuals!  We know what our tagged birds do, when
> we can follow them.  But we would love to have gps data coming in from our
> birds, such as the snowy owls and golden eagles give their researchers.
>  Bring on the Tiny Tags!
>
> Anne
>
> On Mar 4, 2014, at 7:19 AM, Sue Rakow wrote:
>
> I observed the murder of crows on Sunday evening. It was stunning. I would
> like to know more about why they gather in such large groups. Are they on
> the move or are they local? Can anyone help me understand?
> Thanks.
> Sue Rakow
> --
> *Cayugabirds-L List Info:*
> Welcome and Basics 
> Rules and Information 
> Subscribe, Configuration and 
> Leave
> *Archives:*
> The Mail 
> Archive
> Surfbirds 
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> *Please submit your observations to eBird
> !*
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>
>

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Re: [cayugabirds-l] Crows on South Hill

[Anne Clark]

These groups are "winter roosts", and they are nothing new in crow life.  
Despite what urban residents sometimes think, crows didn't start gathering when 
we set out cities for them to use.  Roosting in groups at any time of year may 
offer safety in numbers from night predators, such as Great Horned Owls.  

In winter, birds living in northern areas that usually have constant snow cover 
for months do migrate south--Canada, areas of New England.  Crows don't 
necessarily have a particular area they migrate TO.  They may go as far as an 
area that is usually ok for foraging, perhaps one that they are familiar with 
from previous migrations.  There they form flocks that are made up of migrants 
as well as wide-foraging locals.  If it gets unusually snowy and cold, they may 
move further south.  (We really don't know much of the repeat migratory routes 
of individual crows.  We do know that birds tagged in Ithaca in winter are then 
seen on territories in Canada, VT, New Hampshire in summer, and that some birds 
RAISED in Ithaca have been observed or shot in winter, in such places as 
Maryland, West VA, and Pennsylvania, as well as in Cortland, Auburn, Geneva)

In the winter flocks, birds are foraging in open fields and off familiar areas. 
 During foraging, flocks offer some safety in numbers to detect predators in 
day (hawks, hunters, whatever).  At night the flocks "flock up" still more in 
places that offer "good roosting sites", which probably includes wind breaks, 
places from which owls can be detected at night. So they are probably gathering 
both for safety in numbers and also because they all agree on what makes a good 
site.  Cities may offer fewer predators, but also the lights may allow them to 
see the predators.  Finally roosting in flocks that include birds that have 
sampled food sources widely may allow birds to find new food sources, perhaps 
by following the most assured and directed birds leaving the roost.

So--Upstate NY has its own crows and is ideally positioned for northern 
crows--so flocks become big.  They like the agricultural fields interspersed 
with trees and lots of running water sources (which may be important in cold 
winters)...and we also offer lots of smaller cities, with large groups of lit 
trees in their downtowns or college campuses. These seem to be attractive.

Mid-late March is the start of the breeding season and flocking crows will be 
returning to their breeding latitudes.  Our Ithaca pairs are already calling on 
territory during daytimes.

As I say, some of this story is surmised from the patterns, not pinned down 
with hard data on individuals!  We know what our tagged birds do, when we can 
follow them.  But we would love to have gps data coming in from our birds, such 
as the snowy owls and golden eagles give their researchers.  Bring on the Tiny 
Tags!

Anne

On Mar 4, 2014, at 7:19 AM, Sue Rakow wrote:

> I observed the murder of crows on Sunday evening. It was stunning. I would 
> like to know more about why they gather in such large groups. Are they on the 
> move or are they local? Can anyone help me understand?
> Thanks.
> Sue Rakow
> --
> Cayugabirds-L List Info:
> Welcome and Basics
> Rules and Information
> Subscribe, Configuration and Leave
> Archives:
> The Mail Archive
> Surfbirds
> BirdingOnThe.Net
> Please submit your observations to eBird!
> --


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[cayugabirds-l] Crows on South Hill

[Sue Rakow]

I observed the murder of crows on Sunday evening. It was stunning. I would
like to know more about why they gather in such large groups. Are they on
the move or are they local? Can anyone help me understand?
Thanks.
Sue Rakow

--

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RE: FW: [cayugabirds-l] Crows like to toboggan

[Laura Stenzler]

Okay, try this link.

Laura Stenzler
l...@cornell.edu

https://www.youtube.com/watch?v=YmIqavhdaig

On 16 January 2014 10:39, Laura Stenzler 
mailto:l...@cornell.edu>> wrote:


Laura Stenzler
l...@cornell.edu<mailto:l...@cornell.edu>

From: 
bounce-111941972-8866...@list.cornell.edu<mailto:bounce-111941972-8866...@list.cornell.edu>
 
[mailto:bounce-111941972-8866...@list.cornell.edu<mailto:bounce-111941972-8866...@list.cornell.edu>]
 On Behalf Of Gary Kohlenberg
Sent: Thursday, January 16, 2014 8:25 AM
To: CAYUGABIRDS-L
Subject: [cayugabirds-l] Crows like to toboggan

Hi all,

http://www.wimp.com/crowtobogganing/


My friend Dave Roman alerted me to the fact that crow sledding 
is a popular winter activity in some parts of the world. It made me wonder if 
Kevin McGowan had witnessed similar winter sports action in North America. ;)

Gary


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RE: [cayugabirds-l] Crows like to toboggan

[Meena Madhav Haribal]

Hi Gary et al.,

I have watched some gulls purposely sliding over the ice and enjoying the slide 
to do it over and over again and some are afraid of sliding over the ice.
I also have videos of  Sandhill cranes sliding cautiously over the ice, testing 
every step to make sure they don't slide too far. If they slid a little longer 
distance they were terrified.

Today I walked to work and lots of birds were singing.
Carolina wren, Tufted Titmice, Cardinals, BC Chickadees, White-throated 
Sparrow, House Finches, Red-bellied Woodpecker, Downy woodpecker and Blue  Jay! 
I also heard some American tree Sparrows and saw a roosting Red-tailed Hawk in 
my neighbor's yard. And a Mockingbird was perched atop a tree in its usual 
location at horse barn on Route 366.

Cheers
Meena




From: bounce-111941972-3493...@list.cornell.edu 
[mailto:bounce-111941972-3493...@list.cornell.edu] On Behalf Of Gary Kohlenberg
Sent: Thursday, January 16, 2014 8:25 AM
To: CAYUGABIRDS-L
Subject: [cayugabirds-l] Crows like to toboggan

Hi all,

http://www.wimp.com/crowtobogganing/


My friend Dave Roman alerted me to the fact that crow sledding 
is a popular winter activity in some parts of the world. It made me wonder if 
Kevin McGowan had witnessed similar winter sports action in North America. ;)

Gary


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[cayugabirds-l] Crows like to toboggan

[Gary Kohlenberg]

Hi all,

http://www.wimp.com/crowtobogganing/


My friend Dave Roman alerted me to the fact that crow sledding 
is a popular winter activity in some parts of the world. It made me wonder if 
Kevin McGowan had witnessed similar winter sports action in North America. ;)

Gary


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[cayugabirds-l] crows and a chickadee

[Marc Devokaitis]

This morning at 7:20, i counted 100+ crows flying southeast over Hudson St.
on South Hill--  oriented toward Six Mile Creek.  Five minutes later there
was another group of about 150 that was flying more or less due east above
the intersection of State St and Mitchell St (lower Collegetown).  I was
hoping for one more five minutes later (flying northeast) to continue the
pattern, but it didn't materialize.

On N.Quarry there was a chickadee singing Cheeseburger, which struck me
(figuratively).

Marc Devokaitis
Ithaca

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[cayugabirds-l] Crows

[Nancy]

This sighting is from Tuesday, but since I did not see anyone else mention it, 
I thought I would. There were thousands (?) of crows in trees (and more flying 
in) just above the traffic circle at old Elmira Rd and Spencer rd at 5 pm on 
Tues. I did not stop to watch. They were silhouetted very nicely against the 
sky.

I volunteer for Cayuga Dog Rescue
Learn more at cayugadogrescue.org


Sent from my iPad
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Re: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

[Anne Clark]

HI All,

A very quick comment, although I do not in fact know of any data on how 
effective mobbing of owls is in moving them any substantial distance.

Crows are indeed migratory in parts of their range and they do indeed often 
join roosts in winter.  If they have migrated, they won't be present to defend 
or disturb early owl nesting, true.  BUT many crows in Ithaca are returning to 
their territories almost every day, and some do NOT join winter roosts but 
sleep at home.  (That is data based, gathered by Ithaca crow-ers, based on 
radio tracking crows in some pretty frigid weather all the way through winter.) 
 

We regularly see our marked birds on territories for periods in the morning and 
early evening, even for those who may join a local roost in Cayuga Heights or 
at Titus Towers or along the slopes of Spencer Rd or Morris Heights.  So at 
least here, most adult crows (that is, breeders with territories) probably are 
not returning after a long winter flocking around.  They are making regular 
moves locally for food and safety and sociality, but they are also monitoring 
their territories regularly.  Hence that owl with 40 crows after it was 
probably on the territory of one or more of the groups harassing it.  You don't 
often see predators being harassed by big loud groups out at the Stevenson Road 
compost, unless they have actually caught a crow.  One or a few birds may bomb 
a red-tailed hawk but 50 crows don't follow.   (Goodness knows one could chase 
redtails all day out there.)

As for owls attacking crow roosts, again, I have no data except to say I have 
never seen signs of owl predation under the trees of roosts I have checked.  A 
screaming lot of crows in the middle of the night might be off putting for a 
stealth predator.  And a wild turkey makes a more substantial meal. 

So are crows successful in their efforts?  I just don't know.  Locating nesting 
owls might be good for pre-nesting crows so they know where NOT to nest, I 
suppose. Crow nests, by the way, are often or usually NOT in the middle of a 
territory, but located in the "right tree", even if on a corner of a territory. 
 Crow nests built at the normal first-nest time of year (Mar-April) are rarely 
out where they can easily be seen.  Usually they are in conifers and range from 
easy to see as a dark spot against light sky to basically invisible to  humans. 

Is every crow harassing an owl bent on moving a dangerous animal, as opposed to 
showing off a bit or simply blinding joining its parents?  Don't know that 
either. (I doubt they need the exercise though!)  WE do know that crows 
sometimes lose their lives during hawk-owl harassment. And it seems logical 
that larger groups of crows will do a better job of moving a predator. 


And I should let everyone know:   a trio of quonking ravens was at the 
Stevenson Road compost yesterday about 1300h for 10 min or so, flying around, 
landing in trees where crows were sitting and apparently making them fly up 
before quickly moving to the next tree.  One looked young from my view of its 
"brownish" primaries.  I was unfortunately walking a dog so saw it all through 
trees, and they were gone by the time I was in position to watch with a clear 
view.  But there were three.

Anne




 
On Feb 18, 2013, at 11:32 PM,   wrote:

> I'm thinking more about crows and owls. It's a substitute for actually 
> knowing, so please chime in, Anne, or anyone else who knows better than I do 
> what really goes on. I've been impressed by how much the Great Horned Owls in 
> Renwick have withstood crows' harassment, and that impression flavored my 
> earlier comment.
> 
> A big purpose of the harassment of owls by crows ought to be to drive the 
> predators away so the owls will cease being a danger to the harassing crows. 
> But it doesn't look to me like it would work very well. Great Horned Owls are 
> low-light, quiet, fairly slow (I think), stealth hunters, and in the daytime 
> they are not a danger to crows nor to anyone else. 
> 
> A roosting owl might be convinced to move, but would it move far enough to 
> shift its nighttime hunting area? Where would it not be in some crows' 
> territory? At some point the owl has to stop being driven, and I have heard 
> crows quit. Nesting owls, if they are to be successful, and obviously 
> sometimes they are successful, must not be ousted by crows for several 
> months, starting in early winter, when (I assume) crows are not defending 
> territories nor clearing them of owls starting a nest. Last spring's crow 
> nest can make a nice owl nest, which must be a disheartening discovery, to 
> find owls living smack-dab in the middle of the territory when the crows 
> return at the end of winter. 
> 
> In autumn and winter crows may travel for miles to roost during the night 
> when owls are hunting. By gathering thousands of crows out of outlying owls' 
> hunting territories, crows might improve their individual odds, but I would 
> think that an

Re: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

[nutter.dave]

I'm thinking more about crows and owls. It's a substitute for actually knowing, so please chime in, Anne, or anyone else who knows better than I do what really goes on. I've been impressed by how much the Great Horned Owls in Renwick have withstood crows' harassment, and that impression flavored my earlier comment.A big purpose of the harassment of owls by crows ought to be to drive the predators away so the owls will cease being a danger to the harassing crows. But it doesn't look to me like it would work very well. Great Horned Owls are low-light, quiet, fairly slow (I think), stealth hunters, and in the daytime they are not a danger to crows nor to anyone else. A roosting owl might be convinced to move, but would it move far enough to shift its nighttime hunting area? Where would it not be in some crows' territory? At some point the owl has to stop being driven, and I have heard crows quit. Nesting owls, if they are to be successful, and obviously sometimes they are successful, must not be ousted by crows for several months, starting in early winter, when (I assume) crows are not defending territories nor clearing them of owls starting a nest. Last spring's crow nest can make a nice owl nest, which must be a disheartening discovery, to find owls living smack-dab in the middle of the territory when the crows return at the end of winter. In autumn and winter crows may travel for miles to roost during the night when owls are hunting. By gathering thousands of crows out of outlying owls' hunting territories, crows might improve their individual odds, but I would think that any owl residing near the massive crow roost, or who came to visit, would have easy eating. Maybe the crows make a special effort to clear owls from the crow roosting neighborhood, but the roost is so obvious that I wonder how much good it would do. In the crow nesting season, of course, the crow female and young are stuck and vulnerable. Again, the crows have a good reason to try to drive an owl away, but I would think that a Great Horned Owl can still travel a long distance to hunt, and a crow nest which I can see in a tree during the day is probably similarly obvious to the owl at night. The crow nesting season starts after the owls are well underway. Do crows choose not to nest near Great Horned Owls? I bet the owls' hunting ranges so large as to encompass several crow nests anyway. I assume that the harassment of owls has some direct benefit in terms of predation reduction, but I doubt it's very large. I think either crows harass owls so much because that's one of the few things they can do to reduce predation when they can afford the time and energy, or else there are other benefits, such as getting to know what a Great Horned Owl looks like, or showing off for other crows, or crow family bonding, or being generally useful to the crow flock, or socializing, or getting exercise, or even having fun. Crows' lot looks very frustrating - and dangerous - regarding Great Horned Owls. I sympathize with the crows, too, but also I find their situation more complex and hard to figure.--Dave NutterOn Feb 16, 2013, at 03:18 PM, Anne Clark  wrote:Right--and come mid-April, some person might just pick up a partly eaten, headless, tagged female crow under her nest and think...it was her first nest--what a short life, only 5 years, her nestlings gone, too!  She could have had 6 more years at least, or more.Boredom probably doesn't describe why the crows leave off (have seen them harrying owls for at least 6 hours)...nor a lack of memory for why they start over the next day.  The crows aren't moving on...they are trying to move a dangerous thing out of their neighborhood, where their own kids need a chance at life.Yup--I took the bait.  The story is all in your perspective, but I always find US interesting in siding with the one who has the kids at the time! Holding no grudges against owl-lovers, AnneOn Feb 16, 2013, at 2:05 PM, Mona Bearor wrote:I'll be thinking of your explaination when I visit the nest again, and I'll be watching for that owl to sigh and plan its nightly menu!Mona Bearor
So. Glens Falls, NYOn 2/16/2013 12:21 PM, nutter.d...@me.com wrote:I think this is the sort of crap that Great Horned Owls have to put up with, and they get used to it. I suspect that what you saw is probably the pattern. Every day some crow "discovers" the owl, still in the same place on its nest, and raises the alarm, just as it would for an owl roosting in a new spot every day. All the other crows join in for awhile, so the whole crow community is aware of its presence, and the younger crows learn, "We don't like these guys." When they're satisfied and bored with lack of reaction from the owl on the nest, they move on. The owl sighs, reminds itself to eat some of those bastards come nightfall, and continues incubating, brooding, or guarding its young.--Dave Nutter On Feb 15, 2013, at 06:29 PM, Mona Bearor  wrote: Yesterday morning I observed about 50 crows mobb

Re: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

[Mona Bearor]

Thanks for your note, Anne, and for putting the crows viewpoint out 
there. I didn't mean to disrespect the crows - I find them fascinating, 
and often spend an hour or more watching hundreds of them on a discarded 
produce pile at a pig farm near here.   There are ravens as well, and it 
is a great opportunity to study both species as they interact. My intent 
was to say that I'd be watching the owl for behavioral clues; my choice 
of words was poor.  You are right that we humans tend to side with the 
one with the "kids;" I find that I usually root for the smaller species 
as well - but I do love to see a raptor tear apart and consume prey!

Mona Bearor
So. Glens Falls, NY

On 2/16/2013 3:18 PM, Anne Clark wrote:
>
> Right--and come mid-April, some person might just pick up a partly 
> eaten, headless, tagged female crow under her nest and think...it was 
> her first nest--what a short life, only 5 years, her nestlings gone, 
> too!  She could have had 6 more years at least, or more.
>
> Boredom probably doesn't describe why the crows leave off (have seen 
> them harrying owls for at least 6 hours)...nor a lack of memory for 
> why they start over the next day.  The crows aren't moving on...they 
> are trying to move a dangerous thing out of their neighborhood, where 
> their own kids need a chance at life.
>
> Yup--I took the bait.  The story is all in your perspective, but I 
> always find US interesting in siding with the one who has the kids at 
> the time!
>
> Holding no grudges against owl-lovers,
>
> Anne
>
>
>
>
>
> On Feb 16, 2013, at 2:05 PM, Mona Bearor wrote:
>
>> I'll be thinking of your explaination when I visit the nest again, 
>> and I'll be watching for that owl to sigh and plan its nightly menu!
>> Mona Bearor
>> So. Glens Falls, NY
>> On 2/16/2013 12:21 PM, nutter.d...@me.com wrote:
>>> I think this is the sort of crap that Great Horned Owls have to put 
>>> up with, and they get used to it. I suspect that what you saw is 
>>> probably the pattern. Every day some crow "discovers" the owl, still 
>>> in the same place on its nest, and raises the alarm, just as it 
>>> would for an owl roosting in a new spot every day. All the other 
>>> crows join in for awhile, so the whole crow community is aware of 
>>> its presence, and the younger crows learn, "We don't like these 
>>> guys." When they're satisfied and bored with lack of reaction from 
>>> the owl on the nest, they move on. The owl sighs, reminds itself to 
>>> eat some of those bastards come nightfall, and continues incubating, 
>>> brooding, or guarding its young.
>>> --Dave Nutter
>>>
>>> On Feb 15, 2013, at 06:29 PM, Mona Bearor  
>>> wrote:
>>>
 Yesterday morning I observed about 50 crows mobbing a Great Horned 
 Owl on a nest.  It made me wonder if the crows could make the owl 
 abandon the nest with repeated harassment, or if they would just 
 give up after a while.  I had an appointment so I couldn't stick 
 around too long, but did watch this behavior for over 20 minutes 
 non-stop. The owl was still on the nest today.

 Any thoughts on this?
 Mona Bearor So. Glens Falls, NY

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Re: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

[Anne Clark]

Right--and come mid-April, some person might just pick up a partly eaten, 
headless, tagged female crow under her nest and think...it was her first 
nest--what a short life, only 5 years, her nestlings gone, too!  She could have 
had 6 more years at least, or more.

Boredom probably doesn't describe why the crows leave off (have seen them 
harrying owls for at least 6 hours)...nor a lack of memory for why they start 
over the next day.  The crows aren't moving on...they are trying to move a 
dangerous thing out of their neighborhood, where their own kids need a chance 
at life.

Yup--I took the bait.  The story is all in your perspective, but I always find 
US interesting in siding with the one who has the kids at the time! 

Holding no grudges against owl-lovers, 

Anne





On Feb 16, 2013, at 2:05 PM, Mona Bearor wrote:

> I'll be thinking of your explaination when I visit the nest again, and I'll 
> be watching for that owl to sigh and plan its nightly menu!
> Mona Bearor
> So. Glens Falls, NY
> On 2/16/2013 12:21 PM, nutter.d...@me.com wrote:
>> I think this is the sort of crap that Great Horned Owls have to put up with, 
>> and they get used to it. I suspect that what you saw is probably the 
>> pattern. Every day some crow "discovers" the owl, still in the same place on 
>> its nest, and raises the alarm, just as it would for an owl roosting in a 
>> new spot every day. All the other crows join in for awhile, so the whole 
>> crow community is aware of its presence, and the younger crows learn, "We 
>> don't like these guys." When they're satisfied and bored with lack of 
>> reaction from the owl on the nest, they move on. The owl sighs, reminds 
>> itself to eat some of those bastards come nightfall, and continues 
>> incubating, brooding, or guarding its young.
>> --Dave Nutter
>> 
>> On Feb 15, 2013, at 06:29 PM, Mona Bearor  wrote:
>> 
>>> Yesterday morning I observed about 50 crows mobbing a Great Horned Owl on a 
>>> nest.  It made me wonder if the crows could make the owl abandon the nest 
>>> with repeated harassment, or if they would just give up after a while.  I 
>>> had an appointment so I couldn't stick around too long, but did watch this 
>>> behavior for over 20 minutes non-stop.  The owl was still on the nest today.
>>> 
>>> Any thoughts on this?
>>> Mona Bearor So. Glens Falls, NY
>>> 
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Re: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

[Mona Bearor]

I'll be thinking of your explaination when I visit the nest again, and 
I'll be watching for that owl to sigh and plan its nightly menu!

Mona Bearor
So. Glens Falls, NY

On 2/16/2013 12:21 PM, nutter.d...@me.com wrote:
> I think this is the sort of crap that Great Horned Owls have to put up 
> with, and they get used to it. I suspect that what you saw is probably 
> the pattern. Every day some crow "discovers" the owl, still in the 
> same place on its nest, and raises the alarm, just as it would for an 
> owl roosting in a new spot every day. All the other crows join in for 
> awhile, so the whole crow community is aware of its presence, and the 
> younger crows learn, "We don't like these guys." When they're 
> satisfied and bored with lack of reaction from the owl on the nest, 
> they move on. The owl sighs, reminds itself to eat some of those 
> bastards come nightfall, and continues incubating, brooding, or 
> guarding its young.
> --Dave Nutter
>
> On Feb 15, 2013, at 06:29 PM, Mona Bearor  wrote:
>
>> Yesterday morning I observed about 50 crows mobbing a Great Horned 
>> Owl on a nest.  It made me wonder if the crows could make the owl 
>> abandon the nest with repeated harassment, or if they would just give 
>> up after a while.  I had an appointment so I couldn't stick around 
>> too long, but did watch this behavior for over 20 minutes non-stop.  
>> The owl was still on the nest today.
>>
>> Any thoughts on this?
>> Mona Bearor So. Glens Falls, NY
>>
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RE: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

[Jody W Enck]

Don’t know if owls and crows really think like this, but it would be a shame if 
they didn’t!!  Dave, you should write a book.

Jody Enck


From: nutter.d...@me.com
Sent: ‎February‎ ‎16‎, ‎2013 ‎12‎:‎21‎ ‎PM
To: CAYUGABIRDS-L
Subject: Re: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

I think this is the sort of crap that Great Horned Owls have to put up with, 
and they get used to it. I suspect that what you saw is probably the pattern. 
Every day some crow "discovers" the owl, still in the same place on its nest, 
and raises the alarm, just as it would for an owl roosting in a new spot every 
day. All the other crows join in for awhile, so the whole crow community is 
aware of its presence, and the younger crows learn, "We don't like these guys." 
When they're satisfied and bored with lack of reaction from the owl on the 
nest, they move on. The owl sighs, reminds itself to eat some of those bastards 
come nightfall, and continues incubating, brooding, or guarding its young.

--Dave Nutter

On Feb 15, 2013, at 06:29 PM, Mona Bearor  wrote:

Yesterday morning I observed about 50 crows mobbing a Great Horned Owl on a 
nest.  It made me wonder if the crows could make the owl abandon the nest with 
repeated harassment, or if they would just give up after a while.  I had an 
appointment so I couldn't stick around too long, but did watch this behavior 
for over 20 minutes non-stop.  The owl was still on the nest today.

Any thoughts on this?
Mona Bearor So. Glens Falls, NY

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Re: [cayugabirds-l] Crows mobbing Great Horned Owl on nest

[nutter.dave]

I think this is the sort of crap that Great Horned Owls have to put up with, and they get used to it. I suspect that what you saw is probably the pattern. Every day some crow "discovers" the owl, still in the same place on its nest, and raises the alarm, just as it would for an owl roosting in a new spot every day. All the other crows join in for awhile, so the whole crow community is aware of its presence, and the younger crows learn, "We don't like these guys." When they're satisfied and bored with lack of reaction from the owl on the nest, they move on. The owl sighs, reminds itself to eat some of those bastards come nightfall, and continues incubating, brooding, or guarding its young.--Dave NutterOn Feb 15, 2013, at 06:29 PM, Mona Bearor  wrote:Yesterday morning I observed about 50 crows mobbing a Great Horned Owl on a nest.  It made me wonder if the crows could make the owl abandon the nest with repeated harassment, or if they would just give up after a while.  I had an appointment so I couldn't stick around too long, but did watch this behavior for over 20 minutes non-stop.  The owl was still on the nest today.  Any thoughts on this?Mona Bearor So. Glens Falls, NY--Cayugabirds-L List Info:Welcome and BasicsRules and InformationSubscribe, Configuration and LeaveArchives:The Mail ArchiveSurfbirdsBirdingOnThe.NetPlease submit your observations to eBird!--
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[cayugabirds-l] Crows mobbing Great Horned Owl on nest

[Mona Bearor]

Yesterday morning I observed about 50 crows mobbing a Great Horned Owl 
on a nest.  It made me wonder if the crows could make the owl abandon 
the nest with repeated harassment, or if they would just give up after a 
while.  I had an appointment so I couldn't stick around too long, but 
did watch this behavior for over 20 minutes non-stop.  The owl was still 
on the nest today.

Any thoughts on this?

Mona Bearor
So. Glens Falls, NY




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[cayugabirds-l] Crows heading to roost

[Meena Haribal]

So far about 2000 crows have headed towards Robert Purcell. If they went beyond 
that I can't see. Now the stream has thinned out a bit (4.19 PM). They came 
from beyond Vet school, or may be from dump or from fields around.
By now it is almost over (4.21 PM).

Meena

Meena Haribal
Boyce Thompson Institute
Ithaca NY 14850
Phone 607-254-1258
http://meenaharibal.blogspot.com/
http://haribal.org/




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RE: [cayugabirds-l] Crows coming in to roost

[Kevin J. McGowan]

From: bounce-72559871-3493...@list.cornell.edu 
[mailto:bounce-72559871-3493...@list.cornell.edu] On Behalf Of 
nutter.d...@me.com
Sent: Sunday, January 06, 2013 8:29 PM
To: CAYUGABIRDS-L
Subject: Re: [cayugabirds-l] Crows coming in to roost

 I think there are some crows which stick to their territories, while 
others sleep in central roosts and feed in farm country.

--Dave Nutter


Good guess.  Most of the crows we radio-tracked spent most of their nights 
sleeping on their home territories.  Their use of the large roosts was 
intermittent and unpredictable.  I suspect all the wandering visitors us the 
large roosts, but don't have the data to prove it.

Kevin

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RE: [cayugabirds-l] Crows coming in to roost

[Kevin J. McGowan]

Thanks for the information.  When we were radio-tracking crows to roost we 
found they could spend the night in lots of different places.  

Kevin



-Original Message-
From: bounce-72559731-3493...@list.cornell.edu 
[mailto:bounce-72559731-3493...@list.cornell.edu] On Behalf Of W. Larry Hymes
Sent: Sunday, January 06, 2013 4:37 PM
To: CAYUGABIRDS-L
Subject: [cayugabirds-l] Crows coming in to roost

A few minutes ago hundreds of crows flew over east hill heading from the 
direction of the compost piles to find roosts.  It looked as though some headed 
towards downtown and others headed more towards campus.  Kevin, are crows 
faithful to a roost, or do they decide on the spur of the moment where they 
would like to go.  I got the impression that many of the birds couldn't make up 
their minds and kept wavering back and forth.  They kept calling incessantly, 
as though having a heated discussion as to which way to go on this particular 
night.

Larry

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120 Vine Street, Ithaca, NY 14850
(H) 607-277-0759, w...@cornell.edu



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Re: [cayugabirds-l] Crows coming in to roost

[nutter.dave]

Late this afternoon Laurie and I went on a short walk on the Cayuga Waterfront Trail between NYS-89 and the Flood Control Channel along Cass Park. I brought my scope in hopes of seeing a Turkey Vulture over Cayuga Heights, but no such luck. Instead, while skies over me were empty, I saw a steady trickle of individual southbound crows over the eastern horizon. Later on, and now I wish I'd noted the time, a flock of eastbound crows suddenly appeared over West Hill, dozens of birds, followed seconds later by another and another flock all heading across the valley. I didn't trace the complete trajectory of the birds on either hill, but I was struck by the sudden late front of western birds while those over East Hill had already been moving and presumably were already close to a North Campus roost. These evening commuting flocks were much like the morning commuting flocks I saw on New Years day, silent. Meanwhile a few individual crows went about their business in trees I could see. On New Year's morning it seemed to be the local birds who called when the commuters flew past. I think there are some crows which stick to their territories, while others sleep in central roosts and feed in farm country.--Dave NutterOn Jan 06, 2013, at 05:00 PM, Gary Kohlenberg  wrote:Larry, North Campus is hosting many crows, what looks to be 1000+ . Most of them are in the trees by Robert Purcell Community Center, Appel Commons and the Observatory. I was surprised by them on the Christmas Bird Count as I hadn't been up there at dusk.  GaryOn Jan 6, 2013, at 4:36 PM, W. Larry Hymes wrote:  A few minutes ago hundreds of crows flew over east hill heading from the direction of the compost piles to find roosts. It looked as though some headed towards downtown and others headed more towards campus. Kevin, are crows faithful to a roost, or do they decide on the spur of the moment where they would like to go. I got the impression that many of the birds couldn't make up their minds and kept wavering back and forth. They kept calling incessantly, as though having a heated discussion as to which way to go on this particular night.  Larry  --    W. Larry Hymes 120 Vine Street, Ithaca, NY 14850 (H) 607-277-0759, w...@cornell.edu    --  Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm  ARCHIVES: 1) cayugabirds-l@cornell.edu/maillist.html'>http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html  Please submit your observations to eBird: http://ebird.org/content/ebird/  -- --  Cayugabirds-L List Info: http://www.NortheastBirding.com/CayugabirdsWELCOME http://www.NortheastBirding.com/CayugabirdsRULES http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm  ARCHIVES: 1) cayugabirds-l@cornell.edu/maillist.html'>http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds 3) http://birdingonthe.net/mailinglists/CAYU.html  Please submit your observations to eBird: http://ebird.org/content/ebird/  -- 
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Re: [cayugabirds-l] Crows coming in to roost

[Gary Kohlenberg]

Larry,
North Campus is hosting many crows, what looks to be 1000+ . Most of 
them are in the trees by Robert Purcell Community Center, Appel Commons and the 
Observatory. I was surprised by them on the Christmas Bird Count as I hadn't 
been up there at dusk. 
Gary 
 

On Jan 6, 2013, at 4:36 PM, W. Larry Hymes wrote:

A few minutes ago hundreds of crows flew over east hill heading from the 
direction of the compost piles to find roosts.  It looked as though some headed 
towards downtown and others headed more towards campus.  Kevin, are crows 
faithful to a roost, or do they decide on the spur of the moment where they 
would like to go.  I got the impression that many of the birds couldn't make up 
their minds and kept wavering back and forth.  They kept calling incessantly, 
as though having a heated discussion as to which way to go on this particular 
night.

Larry

-- 


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120 Vine Street, Ithaca, NY 14850
(H) 607-277-0759, w...@cornell.edu



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[cayugabirds-l] Crows coming in to roost

[W. Larry Hymes]

A few minutes ago hundreds of crows flew over east hill heading from the 
direction of the compost piles to find roosts.  It looked as though some 
headed towards downtown and others headed more towards campus.  Kevin, 
are crows faithful to a roost, or do they decide on the spur of the 
moment where they would like to go.  I got the impression that many of 
the birds couldn't make up their minds and kept wavering back and 
forth.  They kept calling incessantly, as though having a heated 
discussion as to which way to go on this particular night.


Larry

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120 Vine Street, Ithaca, NY 14850
(H) 607-277-0759, w...@cornell.edu



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RE: [cayugabirds-l] Crows--migrating?

[Kevin J. McGowan]

They certainly could be migrating; it's time for our annual visit from more 
northern crows.  We have had band returns of crows we banded here in Ithaca in 
winter from around the Montreal area, the Adirondacks, and Vermont. They 
usually arrive in late October and depart in early March.

But, it's hard to label any particular group as migrants.  The locals move 
around a lot right now, looking for freshly harvested fields and other foraging 
spots.  I don't know how to distinguish between migrants and those crows making 
local movements.  And, in fact, they probably get mixed up together anyway.

Kevin




From: bounce-69475063-3493...@list.cornell.edu 
[mailto:bounce-69475063-3493...@list.cornell.edu] On Behalf Of Susan Fast
Sent: Wednesday, October 31, 2012 11:46 AM
To: CAYUGABIRDS-L
Subject: [cayugabirds-l] Crows--migrating?

We just had 169 AMER. CROWS in a loose flock, moving directly north to south, 
over the house.  They were silent.  The only "caws" came from our 3 perched 
yard crows.  I have an hypothesis (until Kevin shoots it down) that these 
silent flocks are migrants; the smaller flocks that move over the house from NW 
to SE probably come from roosting areas near Cornell, generally fly out early 
in the morning and back later in the afternoon, and often involve much calling 
back and forth between the flying flock and neighborhood perched birds.

Steve Fast
Brooktondale

P.S.  Early this morning, on our walk, we encountered a flock of 22 noisy 
BRANT, flying NW!  This was just prior to a light rain shower, so the brant 
were probably heading back toward Cayuga Lake.
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[cayugabirds-l] Crows--migrating?

[Susan Fast]

We just had 169 AMER. CROWS in a loose flock, moving directly north to
south, over the house.  They were silent.  The only "caws" came from our 3
perched yard crows.  I have an hypothesis (until Kevin shoots it down) that
these silent flocks are migrants; the smaller flocks that move over the
house from NW to SE probably come from roosting areas near Cornell,
generally fly out early in the morning and back later in the afternoon, and
often involve much calling back and forth between the flying flock and
neighborhood perched birds. 

 

Steve Fast

Brooktondale

 

P.S.  Early this morning, on our walk, we encountered a flock of 22 noisy
BRANT, flying NW!  This was just prior to a light rain shower, so the brant
were probably heading back toward Cayuga Lake.


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[cayugabirds-l] Crows

[Mark Miller]

I didn't mean to start any battles, I was just relaying the info from the NYS 
Hunting Regulations (www.dec.ny.gov). Although I have hunted in the past (not 
for a few years), I have never shot a crow and was taught that you always eat 
what you kill. I grew up in a single income family of 8 and we often ate 
rabbit, squirrel, & venison that we hunted. I realize that there are many 
non-sportsman (slob) hunters out there, but fishing & hunting is a very 
regulated industry and is valuable in maintaining healthy population levels, 
not to mention bringing in major funding for wildlife and conservation (a 
non-resident fishing, hunting, & trapping license, with all permits was $665.00 
last year). FYI - the only deer I ever killed was with a 1970 Chevy Nova, 
another reason I prefer hunting seasons.

As to the crows in Geneva, I enjoy driving along the lakeshore on 5&20 around 
sunrise/sunset and seeing the trees solid black with about 10,000 crows, but 
then again, I don't live there.

I would suggest that everyone should at least browse through the state fishing 
& hunting regulations (available at Wal-Mart for free or on-line), if only to 
understand what the regulations are and why. It will also give you a better 
understanding of what changes are needed (such as wider use of non-lead shot). 


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[cayugabirds-l] Crows have come home to roost! MY HOME

[Lee Ann van Leer]

2700+ American Crows have come home to roost...literally!  I got home around
9:45pm and as soon as I got out of my car I heard a quick burst of 
"Caw-Caw-Ca-ca Caw" then silence.  

I looked up and sure enough the crow roost was taking up nearly every tree in 
my back, side, and front yard. Then there were many trees across the street 
from me as well as at the neighbors house filled with 110-200 crows per tree.

My question is what should I cook them for breakfast? Eggs? I'm fresh out of 
shelled peanuts. :-) I don't think I have enough supplies for that many mouths. 
Do crows read this list serve & know I fancy them? Did they see my crow vs. 
mallard photo essay? ha ha.

The last few days in late afternoon I was witnessing the crows by hundreds fly 
over my house heading north east to their roost. I told my bird watching 
neighbor yesterday about it and he said, "cool let me know about it next time 
so I can see it".

He was astonished to get the phone call tonight but came out to watch & count 
crows.  He actually walked down the street right by 5 trees of crows and didn't 
realize it because they were so quiet. I had to point up for him to realize 
they were there.

I find this all delightfully humorous because starting with Jan 1st I'd taken 
it upon myself to try to find the crow roost.  Two different nights I had 
driven to several spots in the downtown Ithaca area where I had seen them last 
year, to no avail. 2 weeks ago, as you know, I was finally out and about at the 
right time of day to see them converging upon Emerson/Morse Chain.

I'm going out again later to watch them. Who cares if it is minus 6 degrees. 
After all, how often do the Crows come home to roost? =)

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Re: [cayugabirds-l] Crows?

[David Smith]

Just for the record, Auburn is at the foot of Owasco Lake and Owasco 
Creek flows north.  Owasco Inlet starts in vicinity of Groton nd flows 
north to Owasco Lake.


On 12/16/2010 3:43 PM, Linda Post Van Buskirk wrote:
>
> To clarify:  Auburn is at the head of Owasco Lake, the small Finger 
> Lake that lies between Cayuga Lake and Skaneateles Lake.
>
> Linda P. Van Buskirk, Ph.D.
>
> Sr. Lecturer in Communication
>
> Cornell University
>
> Ithaca, New York
>
> 607-255-2161; fax 607-254-1322
>
> *From:*bounce-7530811-3493...@list.cornell.edu 
> [mailto:bounce-7530811-3493...@list.cornell.edu] *On Behalf Of *Asher 
> Hockett
> *Sent:* Wednesday, December 15, 2010 10:36 PM
> *To:* Andrew Roe
> *Cc:* Cayugabirds-L@cornell.edu
> *Subject:* Re: [cayugabirds-l] Crows?
>
> Large roosts of crows are famous. A few years ago, Auburn, NY, near 
> the upper reaches of Cayuga Lake, had to resort to drastic (but 
> non-violent) measures to rid the city of tens of thousands of them. 
> Maybe Ithaca has a reputation for being more crow friendly. Here we 
> have our own "reverse pied piper" in crow expert Kevin McGowan, who 
> will likely add his educated perspective to my unscientific babbling.
>
> They are using the slopes of south hill which lead down into 6 Mile 
> Creek and the neighborhoods bordering the creek area for the roost 
> these days (or nights, actually).
>
> On Wed, Dec 15, 2010 at 10:05 PM, Andrew Roe 
> mailto:andrew.walker@gmail.com>> wrote:
>
> This is only my second winter in Ithaca (I'm a grad student, here from 
> the southeast) so I don't really know how normal this is- but there 
> seem to be an ENORMOUS number of crows around downtown Ithaca and 
> Cornell- swirling at dusk, covering roofs, nearly toppling trees, 
> blotting out the sun, etc.
>
> Can someone in the know let me know what's going on? Are these all 
> birds passing through, or is there some sort of monumental attack on 
> the Lab of O in the works?
>
> Thanks,
>
> Andrew
>
>
>
>
> -- 
> asher
>
> -Never play it the same way once.
>


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RE: [cayugabirds-l] Crows?

[Linda Post Van Buskirk]

To clarify:  Auburn is at the head of Owasco Lake, the small Finger Lake that 
lies between Cayuga Lake and Skaneateles Lake.

Linda P. Van Buskirk, Ph.D.
Sr. Lecturer in Communication
Cornell University
Ithaca, New York
607-255-2161; fax 607-254-1322

From: bounce-7530811-3493...@list.cornell.edu 
[mailto:bounce-7530811-3493...@list.cornell.edu] On Behalf Of Asher Hockett
Sent: Wednesday, December 15, 2010 10:36 PM
To: Andrew Roe
Cc: Cayugabirds-L@cornell.edu
Subject: Re: [cayugabirds-l] Crows?

Large roosts of crows are famous. A few years ago, Auburn, NY, near the upper 
reaches of Cayuga Lake, had to resort to drastic (but non-violent) measures to 
rid the city of tens of thousands of them. Maybe Ithaca has a reputation for 
being more crow friendly. Here we have our own "reverse pied piper" in crow 
expert Kevin McGowan, who will likely add his educated perspective to my 
unscientific babbling.

They are using the slopes of south hill which lead down into 6 Mile Creek and 
the neighborhoods bordering the creek area for the roost these days (or nights, 
actually).
On Wed, Dec 15, 2010 at 10:05 PM, Andrew Roe 
mailto:andrew.walker@gmail.com>> wrote:
This is only my second winter in Ithaca (I'm a grad student, here from the 
southeast) so I don't really know how normal this is- but there seem to be an 
ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at dusk, 
covering roofs, nearly toppling trees, blotting out the sun, etc.

Can someone in the know let me know what's going on? Are these all birds 
passing through, or is there some sort of monumental attack on the Lab of O in 
the works?

Thanks,

Andrew



--
asher

-Never play it the same way once.

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Re: [cayugabirds-l] Crows?

[Robin Cisne]

To anthropomorphize, the large, raucous clans of crows that gather in winter
always put me in mind of Edith Wharton novels, where the old families are
tangled by intermarriage and winter is the height of the social season, with
a dinner or a ball every night.  As in the novels, I bet the younger
individuals are using the large, impersonal "crushes" to check out potential
mates for the coming season, even as the big, noisy gatherings reaffirm the
larger relationships among the clans.

Robin



On Wed, Dec 15, 2010 at 10:05 PM, Andrew Roe wrote:

> This is only my second winter in Ithaca (I'm a grad student, here from the
> southeast) so I don't really know how normal this is- but there seem to be
> an ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at
> dusk, covering roofs, nearly toppling trees, blotting out the sun, etc.
>
> Can someone in the know let me know what's going on? Are these all
> birds passing through, or is there some sort of monumental attack on the Lab
> of O in the works?
>
> Thanks,
>
> Andrew
>



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RE: [cayugabirds-l] Crows?

[Kevin J. McGowan]

I have an explanation of roosts at 
http://www.birds.cornell.edu/crows/crowfaq.htm#roost

Kevin J. McGowan, Ph.D.
Instructor
Home Study Course in Bird Biology
Cornell Lab of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850
k...@cornell.edu<mailto:k...@cornell.edu>
607-254-2452

From: bounce-7531499-3493...@list.cornell.edu 
[mailto:bounce-7531499-3493...@list.cornell.edu] On Behalf Of Kevin J. McGowan
Sent: Thursday, December 16, 2010 9:19 AM
To: cayugabirds-l@cornell.edu
Subject: RE: [cayugabirds-l] Crows?

I have little to add and nothing to correct in Dave' nice summary.  Crows in 
and around Ithaca usually choose among several modest roosts (500-5,000 crows). 
 Some years the main Ithaca roost is hardly noticeable, and in others it's in 
your face.  The crows typically stage on the Cornell and Ithaca Country Club 
golf courses before heading to the main roost.  Exactly where the final roost 
is changes between and within seasons.  I have not been downtown in the 
evening, and I do not know where the final roost is at this time.

Kevin J. McGowan, Ph.D.
Instructor
Home Study Course in Bird Biology
Cornell Lab of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850
k...@cornell.edu<mailto:k...@cornell.edu>
607-254-2452

From: bounce-7531176-3493...@list.cornell.edu 
[mailto:bounce-7531176-3493...@list.cornell.edu] On Behalf Of Dave Nutter
Sent: Thursday, December 16, 2010 7:27 AM
To: cayugabirds-l@cornell.edu
Subject: Re: [cayugabirds-l] Crows?

Andrew,
Crows are very social animals.  They live in family groups during the breeding 
season,
with a multi-year learning period, and young birds raised the previous year 
often help
their parents to raise their younger siblings.  In the non-breeding season 
crows gather into
massive roosting congregations in the late afternoon.  In recent years these 
roosts have
been much more conspicuous to people as the birds have chosen urban areas with 
large
trees.  In the morning they commute to farm fields to search for waste corn or 
to dumps
(or the Cornell food services composting facility) for waste food.  Toward 
March and the
onset of breeding season the roost breaks up and the birds return to their 
family territories.
I think some local birds here retain residency in their territories during 
winter as well.  Those
winter roosts are amazing, just to consider all the biomass, and the area over 
which they
must be feeding.  Their socializing is noisy and active before and after their 
actual sleeping
time and includes areas outside the actual roost.  They are harmless, of 
course, but people
whose knowledge of biology extends only to Alfred Hitchcock movies may be 
unnerved.
And people whose possessions are underneath roost trees with hundreds of birds 
will be
understandably unhappy with the birds' defecation.  I like to watch the flocks' 
swirling flight.
Kevin McGowan has been studying crows in this area for years, and I hope he 
will expand
upon (and if necessary correct) this post.  His project is responsible for the 
crows with
various colored wing tags, each color representing a different year.  Most 
crows are tagged
in the nest before they are old enough to leave.  Each bird's tags has a 
2-digit code, and
if you tell Kevin which bird you have seen when and where, he may return the 
favor with
a brief life history of that individual.
--Dave Nutter



On Dec 15, 2010, at 07:05 PM, Andrew Roe  wrote:
This is only my second winter in Ithaca (I'm a grad student, here from the 
southeast) so I don't really know how normal this is- but there seem to be an 
ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at dusk, 
covering roofs, nearly toppling trees, blotting out the sun, etc.

Can someone in the know let me know what's going on? Are these all birds 
passing through, or is there some sort of monumental attack on the Lab of O in 
the works?

Thanks,

Andrew

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RE: [cayugabirds-l] Crows?

[Kevin J. McGowan]

I have little to add and nothing to correct in Dave' nice summary.  Crows in 
and around Ithaca usually choose among several modest roosts (500-5,000 crows). 
 Some years the main Ithaca roost is hardly noticeable, and in others it's in 
your face.  The crows typically stage on the Cornell and Ithaca Country Club 
golf courses before heading to the main roost.  Exactly where the final roost 
is changes between and within seasons.  I have not been downtown in the 
evening, and I do not know where the final roost is at this time.

Kevin J. McGowan, Ph.D.
Instructor
Home Study Course in Bird Biology
Cornell Lab of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850
k...@cornell.edu<mailto:k...@cornell.edu>
607-254-2452

From: bounce-7531176-3493...@list.cornell.edu 
[mailto:bounce-7531176-3493...@list.cornell.edu] On Behalf Of Dave Nutter
Sent: Thursday, December 16, 2010 7:27 AM
To: cayugabirds-l@cornell.edu
Subject: Re: [cayugabirds-l] Crows?

Andrew,
Crows are very social animals.  They live in family groups during the breeding 
season,
with a multi-year learning period, and young birds raised the previous year 
often help
their parents to raise their younger siblings.  In the non-breeding season 
crows gather into
massive roosting congregations in the late afternoon.  In recent years these 
roosts have
been much more conspicuous to people as the birds have chosen urban areas with 
large
trees.  In the morning they commute to farm fields to search for waste corn or 
to dumps
(or the Cornell food services composting facility) for waste food.  Toward 
March and the
onset of breeding season the roost breaks up and the birds return to their 
family territories.
I think some local birds here retain residency in their territories during 
winter as well.  Those
winter roosts are amazing, just to consider all the biomass, and the area over 
which they
must be feeding.  Their socializing is noisy and active before and after their 
actual sleeping
time and includes areas outside the actual roost.  They are harmless, of 
course, but people
whose knowledge of biology extends only to Alfred Hitchcock movies may be 
unnerved.
And people whose possessions are underneath roost trees with hundreds of birds 
will be
understandably unhappy with the birds' defecation.  I like to watch the flocks' 
swirling flight.
Kevin McGowan has been studying crows in this area for years, and I hope he 
will expand
upon (and if necessary correct) this post.  His project is responsible for the 
crows with
various colored wing tags, each color representing a different year.  Most 
crows are tagged
in the nest before they are old enough to leave.  Each bird's tags has a 
2-digit code, and
if you tell Kevin which bird you have seen when and where, he may return the 
favor with
a brief life history of that individual.
--Dave Nutter



On Dec 15, 2010, at 07:05 PM, Andrew Roe  wrote:
This is only my second winter in Ithaca (I'm a grad student, here from the 
southeast) so I don't really know how normal this is- but there seem to be an 
ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at dusk, 
covering roofs, nearly toppling trees, blotting out the sun, etc.

Can someone in the know let me know what's going on? Are these all birds 
passing through, or is there some sort of monumental attack on the Lab of O in 
the works?

Thanks,

Andrew

--

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Please submit your observations to eBird:
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RE: [cayugabirds-l] Crows?

[Marie P Read]

I happened to be driving to Rochester through Geneva a week ago at dusk, and 
there was a huge roost (or pre-roost staging area) of crows gathering in the 
park at the north end of Seneca Lake too. Thousands of crows silhouetted in the 
trees at sunset. Very cool to watch.

Marie


Marie Read Wildlife Photography
452 Ringwood Road
Freeville NY  13068 USA

Phone  607-539-6608
e-mail   m...@cornell.edu

http://www.marieread.com
http://www.agpix.com/mari



On Dec 15, 2010, at 07:05 PM, Andrew Roe  wrote:

This is only my second winter in Ithaca (I'm a grad student, here from the 
southeast) so I don't really know how normal this is- but there seem to be an 
ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at dusk, 
covering roofs, nearly toppling trees, blotting out the sun, etc.

Can someone in the know let me know what's going on? Are these all birds 
passing through, or is there some sort of monumental attack on the Lab of O in 
the works?

Thanks,

Andrew

--

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http://www.NortheastBirding.com/CayugabirdsWELCOME
http://www.NortheastBirding.com/CayugabirdsRULES

ARCHIVES:
1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html
2) http://birdingonthe.net/mailinglists/CAYU.html
3) http://www.surfbirds.com/birdingmail/Group/Cayugabirds

Please submit your observations to eBird:
http://ebird.org/content/ebird/

--

Re: [cayugabirds-l] Crows?

[Dave Nutter]

Andrew, Crows are very social animals.  They live in family groups during the breeding season, with a multi-year learning period, and young birds raised the previous year often help their parents to raise their younger siblings.  In the non-breeding season crows gather into massive roosting congregations in the late afternoon.  In recent years these roosts have been much more conspicuous to people as the birds have chosen urban areas with large trees.  In the morning they commute to farm fields to search for waste corn or to dumps (or the Cornell food services composting facility) for waste food.  Toward March and the onset of breeding season the roost breaks up and the birds return to their family territories.  I think some local birds here retain residency in their territories during winter as well.  Those winter roosts are amazing, just to consider all the biomass, and the area over which they must be feeding.  Their socializing is noisy and active before and after their actual sleeping time and includes areas outside the actual roost.  They are harmless, of course, but people whose knowledge of biology extends only to Alfred Hitchcock movies may be unnerved.  And people whose possessions are underneath roost trees with hundreds of birds will be understandably unhappy with the birds' defecation.  I like to watch the flocks' swirling flight.Kevin McGowan has been studying crows in this area for years, and I hope he will expand upon (and if necessary correct) this post.  His project is responsible for the crows with various colored wing tags, each color representing a different year.  Most crows are tagged in the nest before they are old enough to leave.  Each bird's tags has a 2-digit code, and if you tell Kevin which bird you have seen when and where, he may return the favor with a brief life history of that individual.  --Dave NutterOn Dec 15, 2010, at 07:05 PM, Andrew Roe  wrote:This is only my second winter in Ithaca (I'm a grad student, here from the southeast) so I don't really know how normal this is- but there seem to be an ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at dusk, covering roofs, nearly toppling trees, blotting out the sun, etc.


Can someone in the know let me know what's going on? Are these all birds passing through, or is there some sort of monumental attack on the Lab of O in the works?

Thanks,

Andrew

Re: [cayugabirds-l] Crows?

[Asher Hockett]

Large roosts of crows are famous. A few years ago, Auburn, NY, near the
upper reaches of Cayuga Lake, had to resort to drastic (but non-violent)
measures to rid the city of tens of thousands of them. Maybe Ithaca has a
reputation for being more crow friendly. Here we have our own "reverse pied
piper" in crow expert Kevin McGowan, who will likely add his educated
perspective to my unscientific babbling.

They are using the slopes of south hill which lead down into 6 Mile Creek
and the neighborhoods bordering the creek area for the roost these days (or
nights, actually).

On Wed, Dec 15, 2010 at 10:05 PM, Andrew Roe wrote:

> This is only my second winter in Ithaca (I'm a grad student, here from the
> southeast) so I don't really know how normal this is- but there seem to be
> an ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at
> dusk, covering roofs, nearly toppling trees, blotting out the sun, etc.
>
> Can someone in the know let me know what's going on? Are these all
> birds passing through, or is there some sort of monumental attack on the Lab
> of O in the works?
>
> Thanks,
>
> Andrew
>



-- 
asher

-Never play it the same way once.

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--

[cayugabirds-l] Crows?

[Andrew Roe]

This is only my second winter in Ithaca (I'm a grad student, here from the
southeast) so I don't really know how normal this is- but there seem to be
an ENORMOUS number of crows around downtown Ithaca and Cornell- swirling at
dusk, covering roofs, nearly toppling trees, blotting out the sun, etc.

Can someone in the know let me know what's going on? Are these all
birds passing through, or is there some sort of monumental attack on the Lab
of O in the works?

Thanks,

Andrew

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Please submit your observations to eBird:
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[cayugabirds-l] Crows and Wasp nest

[can...@i-bird.com]

Whilst on my way to work passing through the Summer Hill area, I saw two 
crows seemingly predating a paper wasp nest. The nest was in a tree about 
30-40 up and about the size of a football. They were tearing it apart. 
Although I could not see if they were eating any wasps, it seemed a fair 
conclusion. Is there any information on crows actually eating wasps from a 
nest, or was this a game of tearing something apart with the danger of 
wasps? The temperature was quite chilly so the wasps would not have been 
very active.

Richard Tkachuck





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