Re: [nfc-l] Epic Movement - Etna, NY

[Kenneth V. Rosenberg]

Hi Chris et al.,

I was also out listening in Ithaca continuously from about 10:30 to 12:30 
tonight, and I agree it was a fantastic night – still going on, but I’m not. It 
is true that there calls nearly every second for several hours.  I just listen 
and count in real time, assigning the birds I think I know, and putting the 
rest as warbler sp. or passerine sp.  In this period, I counted > 1,000 calls 
of 15 species, the vast majority SWTH and without differentiating any warblers 
other than Common Yellowthroat. I’m sure if I was amplifying or recording, I 
would have thousands more calls, as Chris did.

My highlights were a flock of Caspian Terns calling together, an American 
Bittern, good numbers of Gray-cheeked and several early Hermit Thrush, and a 
totally unexpected BARN OWL that called 4 times as it headed north over my 
neighborhood – I got a pretty good recording on one call on my phone, which 
I’ll upload eventually.

Fun stuff!

KEN

Ken Rosenberg
Applied Conservation Scientist
Cornell Lab of Ornithology
American Bird Conservancy
Fellow, Atkinson Center for a Sustainable Future
k...@cornell.edu
Wk: 607-254-2412
Cell: 607-342-4594


From:  on behalf of "Christopher 
T. Tessaglia-Hymes" 
Reply-To: NFC-L 
Date: Friday, September 18, 2020 at 1:21 AM
To: NFC-L , "n...@list.uvm.edu" 
Subject: [nfc-l] Epic Movement - Etna, NY

Posted the following to the NFC Facebook group just now and thought I would 
share here:


I’ve been listening live in Etna, NY tonight since 10:30pm. This has been an 
epic migration night here and one of the more constantly vocal in recent 
memory. Literally thousands and thousands of calls. Nearly constant calls of 
warblers, thrushes, (and tanagers?), grosbeaks, occasional sparrows, all 
stepping upon one another. First regular groups of Gray-cheeked Thrushes late 
tonight. One Black-billed Cuckoo. Only just now was there a notable gap of some 
10-20 seconds without a call, as a group of coyotes started yipping and 
whooping.



Most impressive night to be listening prior to this first calm. It will be 
interesting to try to run these data through Vesper (I am recording to file 
sequence using Raven Pro; plus recording the full night with my Swift recorder 
and Flowrabola microphone.)



Good night-listening!

Sincerely,
Chris Tessaglia-Hymes

Sent from my iPhone


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Re: [nfc-l] Gray-cheeked thrush?

[Kenneth V. Rosenberg]

Pretty definitely a Gray-cheeked Thrush. I just heard many in Panamá after 
hearing them in NY earlier in the fall. Will be interesting to see how this is 
treated by the records Committees.

Ken

Sent from my iPhone

On Nov 8, 2017, at 7:08 PM, Ted Floyd mailto:tfl...@aba.org>> 
wrote:

Sure looks (and sounds) like it to me. I think you can even rule out 
Bicknell's, haha.

As you say, it is exciting. This brings up something I've been meaning to 
propose: Given how many Gray-cheeked and Swainson's thrushes are actually seen 
in Britain, it occurs to me that it might be cool to put up a detector on the 
Isles of Scilly pointing out toward the ocean. Especially near a light, if 
there is one. We all know the truism that you can hear more Gray-cheeks in an 
hour than you might see in a lifetime. If that applies to thrushes excitedly 
approaching the British Isles, imagine how many thrushes you might detect that 
way.

Best, --Ted

Ted Floyd
Lafayette, Boulder County, Colorado

===

Ted Floyd
Editor, Birding magazine
Managing Editor, North American Birds

Website: http://aba.org/birding
Twitter: http://twitter.com/BirdingMagazine
The ABA Blog: http://blog.aba.org/

On Wed, Nov 8, 2017 at 3:09 PM, Debbie Leick 
mailto:dle...@mpgranch.com>> wrote:
Hey folks,
Could this be anything other than a Gray-cheeked Thrush? We get many Swainson's 
Thrush but this is so different. Recorded in Victor, MT, 9/14/17, ~5:45am. It 
would be a first for us since we began monitoring in 2012. Also, I could not 
find any records of GCTH west of the Montana continental divide in either eBird 
or the MT Natural Heritage Program database. So if it is, a very exciting 
record for us!
Thanks in advance for any guidance!
Debbie

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Re: [nfc-l] Mystery Calls

[Kenneth V. Rosenberg]

Thank you Jay. I cannot hear most of the clips posted here. This is apparently 
a "thing" where some people can hear the bird sounds in these short clips and 
others cannot. I just hear a burst of static. Please put enough ambient sound 
on BOTH sides of the bird sound for our ears to hear the sound in its proper 
context.

Thanks

Ken

Sent from my iPhone

On May 2, 2017, at 8:46 PM, Jay McGowan 
mailto:jw...@cornell.edu>> wrote:

Hey all,
I've posted this before, but I would implore folks posting example recordings 
to this list to leave a few seconds of sound before and after the call in 
question so you can actually hear it. With only a second-long recording, all I 
hear is a burst of sound with no time for my ear to acclimate to the background 
noise. The same goes for audio upload to eBird. We suggest leaving three 
seconds, if possible, before the first and after the last vocalization in the 
recording before upload.

Thanks!

Jay


On Tue, May 2, 2017 at 5:35 PM, Preston Lust 
mailto:prestonl...@yahoo.com>> wrote:
Thank you very much for responding. Here is another example. I think lesser 
yellowlegs could be an option. Thoughts?

From,
 Preston Lust

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Re: [nfc-l] Possible Dickcissel NFC

[Kenneth V. Rosenberg]

Yes, definitely a Dickcissel - the only bird that farts.

Sent from my iPhone

On Nov 6, 2016, at 2:23 PM, Bill Evans 
mailto:wrev...@clarityconnect.com>> wrote:

Yes, that's a Dickcissel. Congrats!

Bill E

From: Jerald
Sent: Sunday, November 06, 2016 1:53 PM
To: nfc-l
Subject: [nfc-l] Possible Dickcissel NFC

Hello all,

Could someone with a bit more experience please confirm whether or not this is 
a Dickcissel? It's getting kind of late for them, and the call sounds a bit 
off. It was picked up by the Oldbird DICK detector at 0218, 11-2-16 over Dover, 
DE.

Thanks,

Jerald
Dover, DE

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[nfc-l] Huge flight over NY, VT

[Kenneth V. Rosenberg]

There is s huge flight of thrushes over White Lake NY and Bennington VT tonight 
- I counted 300 plus thrushes in 30 minutes of nearly continuous layered 
calling. Mostly Swainsons but quite a few Gray-cheeked. All of which got 
flagged. Also 3 Am Bitterns

Ken (visiting Bennington College)

Sent from my iPhone
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Re: [nfc-l] Recent activity in southwestern PA and a few questions

[Kenneth V. Rosenberg]

Hi Geoff,

Just my thoughts on your unknown….

Unknown1 definitely sounds like and oriole, but I couldn’t say that a Baltimore 
wouldn’t sound like that. Your unknown 2 sounds good for American Bittern to me.

thanks for posting your lists and unknowns as a way to get more of us out there 
listening

KEN


Kenneth V. Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
Office: 607-254-2412
cell: 607-342-4594
k...@cornell.edu<mailto:k...@cornell.edu>

On May 5, 2016, at 10:27 PM, Geoff Malosh 
mailto:pomar...@earthlink.net>> wrote:

Hi everyone,

Lots of recent activity here in western Pennsylvania, including a few calls 
that I wouldn’t mind second opinions on.


First is the attached call labeled “Unknown1” which sounds to my ear quite like 
the “yeehr” of an Orchard Oriole, but this species (according to the Evans and 
O’Brien CD) is not known to call on nocturnal migration. Is there something 
else this call could be? I will say this isn’t the only time I’ve heard this 
type of call over my yard but this is by far the best recording I’ve gotten of 
a call of this type. (May 2 at 12:31am)

Second (Unknown2) is another low-frequency call like the possible Least Bittern 
I posted last week. This one sounds like a Black-crowned Night-Heron to me … 
any other ideas? (May 2 at 1:43am)

Lastly is the call I listed as Cedar Waxwing on this eBird checklist: 
http://ebird.org/ebird/view/checklist?subID=S29290856. This would be the first 
nocturnal Cedar Waxwing call I’ve had here, and was wondering if this really is 
definitive or if there are any other possibilities for this call. It seems 
pretty spot on for waxwing and apparently they are known to call at night 
occasionally, but I always like to be cautious with “presumed” birds like these.



Of general interest, the biggest night of the year here so far was May 1-2, 
which was interrupted by a thunderstorm that came along around 3:45am. Here is 
the post-midnight checklist with several clips: 
http://ebird.org/ebird/view/checklist?subID=S29412937. Both of the attached 
Unknowns were made on this same night, by the way.

On May 3 I was surprised to hear a Greater Yellowlegs song on the recordings: 
see http://ebird.org/ebird/view/checklist?subID=S29429788.


As always if there are any errors in any of these checklists please let me know.



Good listening!

Geoff Malosh
Pittsburgh, PA

www.flickr.com/photos/geoffmalosh/<http://www.flickr.com/photos/geoffmalosh/>

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Re: [cayugabirds-l] Fwd: [nfc-l] Thursday: Night Flight in Northeast

[Kenneth V. Rosenberg]

Andrew et al.,

I am by no means the expert here, and hopefully Andrew Farnsworth will chime in 
with any comments or suggestions, but basically all I do is listen in real time 
and count all the birds I can hear and identify. I don’t have a recording 
set-up at present. I’m fairly confident with many of the identifications but 
not with others — I use a lot of warbler sp. and sparrow sp.  I feel I can 
usually estimate number of individual birds passing pretty easily based on the 
timing and position of the calling birds in the sky — where I am there are no 
lights and the birds pass over in a consistent direction, with most individuals 
calling only once or twice within my range of hearing. During heavy flights or 
dense pulses of calling activity, I just do my best to keep track of 
individuals, and sometimes will estimate the ratio of species identified during 
a given period and apply that to the number I’m estimating — functionally this 
isn’t any different from how I would estimate large flocks of ducks or 
shorebirds or migrating hawks.  I’m sure there’s a certain amount of error, but 
not greater than for most other kinds of birding.

Because I use BirdLog, I can easily tally the numbers as I go, but that also 
means I need to remember to change the protocol to NFC after the checklist is 
entered. (I believe BirdLog will eventually be able to record the NFC protocol, 
but I don’t know the timing on that).

Hope this is helpful,

KEN


Kenneth V. Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
Office: 607-254-2412
cell: 607-342-4594
k...@cornell.edu<mailto:k...@cornell.edu>

On Sep 22, 2014, at 9:01 PM, Andrew Albright 
mailto:andrew.albri...@gmail.com>> wrote:

Ken (and Chris*),

I have a different interpretation of the ebird NFC rules/guideliness than the 
Montgomery county (Pennsylvania) ebird compiler for listening live (cc'd here).
http://help.ebird.org/customer/portal/articles/1010492.

It might be easier to just see an example of how you are logging your night 
flight calls into ebird because I think we are doing approximately the same 
activity - listening live and recording nfc that we can ID?  I checked "Recent 
Sightings" from Thompkins Co, NY and the only one example in  that I could find 
doesn't seem to fit guidelines

Other questions/improvement suggestings
1) I brought up the question before about the species that you could 
conclusively identify as being separable, either partially or entirably. Even 
if it were not 100% agreed upon, I think it would be good if there were a 
standard that was used for nfc data entry, e.g. only those fields appear.   
This would make data entry more standard, easier and provide a good starting 
point for a more detailed discussion.

2) It would be nice to provide a "cliff note" version of the instructions.  The 
weblink has quite a bit of information which could be broken down into 
background information and actionable instructions.

3) It would be good to push to have the smartphone app upgraded to enable more 
functionality that includes easy logging of the NFC protocol.

Sincerely,
Andrew Albright


*Chris - If I recall, sometimes you post here that you listen live and 
sometimes you review remote recordings?



On Fri, Sep 19, 2014 at 12:23 AM, Kenneth V. Rosenberg 
mailto:k...@cornell.edu>> wrote:
Just had about 200 thrushes (mostly Swainsons but also many Gray-cheeked and 
Wood Thrush) over my house in Northeast Ithaca in a 45 min count - also 12 
Green Herons and an Am Bittern

Ken

Sent from my iPhone

On Sep 18, 2014, at 9:41 PM, "Christopher T. Tessaglia-Hymes" 
mailto:c...@cornell.edu>> wrote:

Just a heads-up about a potential push of birds into this area overnight 
tonight...

Begin forwarded message:

From: "Christopher T. Tessaglia-Hymes" 
mailto:c...@cornell.edu>>
Subject: [nfc-l] Thursday: Night Flight in Northeast
Date: September 18, 2014 at 9:38:18 PM EDT
To: NFC-L mailto:nf...@list.cornell.edu>>
Reply-To: "Christopher T. Tessaglia-Hymes" 
mailto:c...@cornell.edu>>

There is currently a fairly heavy liftoff going on in the Northeast and 
surrounding regions. The high pressure system situated North of Lake Ontario 
could make for a good push of birds down into the Northeast overnight tonight.

If you can, keep your ears skyward!

Sincerely,
Chris T-H

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Re: [nfc-l] Night Flight: Etna, NY 6/10-6/11 - BARN OWL

[Kenneth V. Rosenberg]

On Monday night (10:30ish ) I heard 5 BLACK-BILLED CUCKOOS migrating over in 
about 20 minutes- each called several times. Also an OVENBIRD flight song high 
overhead.

My listening was cut short when a skunk sprayed my dog in our front driveway

 Ken

Sent from my iPhone

On Jun 11, 2014, at 12:19 PM, "Christopher T. Tessaglia-Hymes" 
mailto:c...@cornell.edu>> wrote:

Last night was very quiet with interspersed rain showers. There were no cuckoos 
last night. Most of the past several nights have had both Black-billed and 
Yellow-billed Cuckoos flying over.

Only birds last night were a flyover singing Red-eyed Vireo (9:51pm), Spotted 
Sandpiper (3:31am), and what sure sounds to me like a BARN OWL calling while 
flying over around 11:58pm.

I'm now wondering if there could be a locally breeding pair. I read that they 
will fly upwards of 3-4 miles away from a nest site in search of food. That's a 
huge circle around my listening station, but could account for the likely 
distant calls recorded on early AM of 1 June.

Attached is the best of the three calls recorded last night from the flyover 
bird.

It isn't exactly a classic call, but it has much of the same qualities of a 
Barn Owl territorial flight call - this is the scream with an inflected 
terminus to the call; not the clicking and not the hissing.

Sincerely,
Chris T-H
[see attached file: ETNA_NY_20140610.235958_Possible BARN OWL_best.wav]
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Re: [nfc-l] Pine Siskin, E. Phoebe calls detected, Gaithersburg, MD 4/2/14

[Kenneth V. Rosenberg]

I should have listened to the calls on something better than my phone. I have 
been fooled by that Wood Duck call during the day, especially when given by a 
perched bird high in a tree :)  But the paper on siskins calling at night is 
real -- check out:  Wilson Journal of Ornithology 123(1):161–164, 2011.

KEN


Ken Rosenberg
Conservation Science Program
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607-254-2412
607-342-4594 (cell)
k...@cornell.edu<mailto:k...@cornell.edu>

On Apr 3, 2014, at 1:04 AM, Andy Martin 
mailto:apmart...@gmail.com>>
 wrote:

I have received an alternate possibility for my presumed siskin call from Jay 
McGowan. He suggests its a male Wood Duck. I listened to and looked at a 
sonogram of a male Wood Duck recording at Xeno-canto (XC70558). Matches very 
well. Sonogram of Pine Siskin "zr" call has a different look.

That makes two new bird sounds for the day. Besides the male Wood Duck call, 
came across some Eastern Towhees in the field today and it was 1st time I think 
I have ever heard them make their buzzy call that's like a longer drawn out 
Lincolns/Swamp Sparrow call.

Thanks for the input.

Andy Martin
Gaithersburg, MD


On Thu, Apr 3, 2014 at 12:29 AM, Kenneth V. Rosenberg 
mailto:k...@cornell.edu>> wrote:
Interesting stuff.  Jeff Wells recently published an article on Pine Siskin 
NFCs recorded in Maine -- I believe he is on this list and may want to comment. 
So these are now well documented and perhaps not that unexpected.

The Phoebe doesn't surprise me either, as I have pretty regularly heard 
Empidonax flycatchers (Least, Alder, Willow), as well as Eastern Wood-Pewees in 
full song flying over at night later in spring, so why not a phoebe?

KEN


Ken Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
607-254-2412
607-342-4594 (cell)
k...@cornell.edu<mailto:k...@cornell.edu>

On Apr 2, 2014, at 10:28 PM, Andy Martin 
mailto:apmart...@gmail.com>>
 wrote:

Wanted to say "NFCs detected" instead of "calls detected" in subject line but 
that may not be quite accurate. Last night (with southerly winds blowing for 
first time since middle of month), I picked up a Pine Siskin's "zre" call 
around 1 AM and 9 minutes later recorded a possible Pine Siskin "waaaeee" call. 
Assume it was passing over but not sure. There has been no Pine Siskin 
irruption down the east coast of US this year but if one was gonna stop at my 
feeders on way back north, this would be the time of year I would expect one. 
From Evan's and O'Brien Flight Call CD, get the impression 1 AM would be little 
early in night to pick up a siskin passing overhead.

Likewise, around 2:28 AM, recorded an Eastern Phoebe singing. Sounds like its 
possibly in flight, with calls coming nearer and than moving off. Hard to tell 
for sure. There was an Eastern Phoebe singing from trees in my backyard around 
6 PM eastern time today. Again, referencing Evans and O'Brien, not much support 
for Eastern Phoebe singing in flight.

NFC recording sure does produce a lot of mysteries.

if interested, attached the Pine Siskin "zre" call and Eastern Phoebe 
singing recordings below.

Andy Martin
Gaithersburg, MD
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Re: [nfc-l] Pine Siskin, E. Phoebe calls detected, Gaithersburg, MD 4/2/14

[Kenneth V. Rosenberg]

Interesting stuff.  Jeff Wells recently published an article on Pine Siskin 
NFCs recorded in Maine -- I believe he is on this list and may want to comment. 
So these are now well documented and perhaps not that unexpected.

The Phoebe doesn't surprise me either, as I have pretty regularly heard 
Empidonax flycatchers (Least, Alder, Willow), as well as Eastern Wood-Pewees in 
full song flying over at night later in spring, so why not a phoebe?

KEN


Ken Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
607-254-2412
607-342-4594 (cell)
k...@cornell.edu

On Apr 2, 2014, at 10:28 PM, Andy Martin 
mailto:apmart...@gmail.com>>
 wrote:

Wanted to say "NFCs detected" instead of "calls detected" in subject line but 
that may not be quite accurate. Last night (with southerly winds blowing for 
first time since middle of month), I picked up a Pine Siskin's "zre" call 
around 1 AM and 9 minutes later recorded a possible Pine Siskin "waaaeee" call. 
Assume it was passing over but not sure. There has been no Pine Siskin 
irruption down the east coast of US this year but if one was gonna stop at my 
feeders on way back north, this would be the time of year I would expect one. 
From Evan's and O'Brien Flight Call CD, get the impression 1 AM would be little 
early in night to pick up a siskin passing overhead.

Likewise, around 2:28 AM, recorded an Eastern Phoebe singing. Sounds like its 
possibly in flight, with calls coming nearer and than moving off. Hard to tell 
for sure. There was an Eastern Phoebe singing from trees in my backyard around 
6 PM eastern time today. Again, referencing Evans and O'Brien, not much support 
for Eastern Phoebe singing in flight.

NFC recording sure does produce a lot of mysteries.

if interested, attached the Pine Siskin "zre" call and Eastern Phoebe 
singing recordings below.

Andy Martin
Gaithersburg, MD
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Fwd: [nfc-l] Chipping Sparrows, eastern Boulder County, Colorado - and cuckoo lore

[Kenneth V. Rosenberg]

I think this was meant for the full list -- Thanks Ted!


Ken Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
607-254-2412
607-342-4594 (cell)
k...@cornell.edu<mailto:k...@cornell.edu>

Begin forwarded message:

From: Ted Floyd mailto:tfl...@aba.org>>
Subject: Re: [nfc-l] Chipping Sparrows, eastern Boulder County, Colorado - and 
cuckoo lore
Date: July 23, 2013 10:26:01 AM EDT
To: "Kenneth V. Rosenberg" mailto:k...@cornell.edu>>



And lest we all think we discover new things, here is an excerpt I recently 
discovered while doing research on wintering migrants for a book project -- 
Bent's Life Histories never ceases to amaze me:

On "the mid-summer mid-bight and mid-sky gyrations of the Black-billed Cuckoos" 
(from a letter from Gerald H, Thayer (1908) in sw. NH: "several years before we 
discovered the nocturnal-flight phenomenon, we bean to be puzzled by the 
extreme frequent of

Hi, Ken et al.

Here's an extraordinary paper from 1904:

http://sora.unm.edu/sites/default/files/journals/auk/v021n01/p0045-p0050.pdf

The author, Henry H. Kopman, describes how he figured out the flight call of 
the Veery. But what's mind-bending about this Henry Kopman is how much else he 
knew. In describing how commonly he heard Veeries, he just drops in this line:

"[The Veery's nocturnal flight call] was caught up as frequently as the notes 
of Yellow Warblers, Indigo Buntings, Sandpipers, Green Herons, and Night 
Herons."

109 years ago, this guy knew Green Herons and night-herons. He knew Indigo 
Buntings. He even knew warblers!

That's amazing to me. I think of warbler and sparrow flight calls as the last 
frontier of NFC ID, and yet Henry Kopman was on it, big time, more than a 
century ago.

And then the story gets even weirder. Kopman just lost interest. As far as I 
can tell, he never published anything else on nocturnal flight calls (although 
he published on other topics). Yes, a few folks kept the flame alive (Peterson 
in his earlier guides, and Dick Pough too), but knowledge of NFS basically went 
underground until, as Ken says, Bill Evans was out delivering pizza one night...

One other thought. The literature on nocturnal flight calls, ca. 1890-1910, is 
extensive. Kopman wasn't the only one, not by a long shot. Search the 
literature for  O. G. Libby, Paul Griswold Howes, and others, and see for 
yourself!

Ted Floyd
tfl...@aba.org<mailto:tfl...@aba.org>
Lafayette, Boulder County, Colorado

Ken, in Ithaca NY

Sent from my iPhone

On Jul 20, 2013, at 10:24 AM, "Jeff Wells" 
mailto:jeffwe...@borealbirds.org>> wrote:

And I heard a Wood Thrush overhead around 10 PM a few nights ago here in 
Gardiner, Maine

Jeff Wells

Sent from my iPhone

On Jul 20, 2013, at 4:44 AM, "Ted Floyd" 
mailto:tfl...@aba.org>> wrote:

Hello, everybody.

A quick check-in here from somewhere other than the Cayuga Basin...  :-)

Chipping Sparrows are moving over Lafayette, eastern Boulder County, USA, in 
the 2am hour right now, Saturday, July 20th. We believe that these are birds 
bailing on their mountain breeding grounds for literally greener pastures in 
eastern Colorado and western Kansas, where they molt. Regardless, it's an 
annual phenomenon, beginning in mid-July (first nighttime detection this year 
for me was July 16th), in the night skies over the Denver metro area, and it's 
fascinating to witness.

Ted Floyd
tfl...@aba.org<mailto:tfl...@aba.org>
Lafayette, Boulder County, Colorado
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Re: [nfc-l] Chipping Sparrows, eastern Boulder County, Colorado - and cuckoo lore

[Kenneth V. Rosenberg]

Yes, most of my YEWAs have been zeeping during the day (including one out my 
window right now), and especially around dusk. I'm still not hearing much at 
night from my house, but I just listen (sporadically) and don't have a 
recording set-up.

I remember you talking about the molt-moivements of Chipping Sparrows, Ted, and 
wondering if dispersing double-brooders in the east do a similar thing -- at 
least sometimes.

And lest we all think we discover new things, here is an excerpt I recently 
discovered while doing research on wintering migrants for a book project -- 
Bent's Life Histories never ceases to amaze me:

On "the mid-summer mid-bight and mid-sky gyrations of the Black-billed Cuckoos" 
(from a letter from Gerald H, Thayer (1908) in sw. NH: "several years before we 
discovered the nocturnal-flight phenomenon, we bean to be puzzled by the 
extreme frequent of Cuckoo calls on summer nights…. They uttered bot the 
cow-cow notes and the rolling guttural call; but the guttural was much the 
commoner of the two, except on dark foggy nights, when the case was usually 
reversed….The birds were often so far up as to be only faintly audible when 
directly overhead,… and this on a still night would seem to mean an elevation 
of at least a hundred and fifty yards. On the evening of July 11…. I heard this 
liquid gurgle note overhead between thirty and forty imps in the course of 
about three hours, during half of which time I was afoot on the road."

1908! And I thought Bill Evans discovered the NFC of Black-billed Cuckoo while 
delivering pizza in Minnesota….

KEN


Ken Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
607-254-2412
607-342-4594 (cell)
k...@cornell.edu

On Jul 23, 2013, at 6:15 AM, Ted Floyd mailto:tfl...@aba.org>>
 wrote:

P.s. Re: Yellow Warblers zeeping everywhere. Same here (Boulder County, 
Colorado), but rarely at night. I don't think I'm just missing them, since I'm 
perfectly able to hear (and record) them by day. They just don't seem to call 
at night; maybe they just don't move at night, either, out West. Probably just 
one of those east-vs.-west things, eh?

Ted Floyd
tfl...@aba.org
Lafayette, Boulder County, Colorado



Fascinating to think they disperse a night between broods. Meanwhile Yellow 
Warblers zeeping everywhere- should be a mass exodus tonight.

Ken, in Ithaca NY

Sent from my iPhone

On Jul 20, 2013, at 10:24 AM, "Jeff Wells" 
mailto:jeffwe...@borealbirds.org>> wrote:

And I heard a Wood Thrush overhead around 10 PM a few nights ago here in 
Gardiner, Maine

Jeff Wells

Sent from my iPhone

On Jul 20, 2013, at 4:44 AM, "Ted Floyd" 
mailto:tfl...@aba.org>> wrote:

Hello, everybody.

A quick check-in here from somewhere other than the Cayuga Basin...  :-)

Chipping Sparrows are moving over Lafayette, eastern Boulder County, USA, in 
the 2am hour right now, Saturday, July 20th. We believe that these are birds 
bailing on their mountain breeding grounds for literally greener pastures in 
eastern Colorado and western Kansas, where they molt. Regardless, it's an 
annual phenomenon, beginning in mid-July (first nighttime detection this year 
for me was July 16th), in the night skies over the Denver metro area, and it's 
fascinating to witness.

Ted Floyd
tfl...@aba.org
Lafayette, Boulder County, Colorado
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Re: [nfc-l] Chipping Sparrows, eastern Boulder County, Colorado

[Kenneth V. Rosenberg]

There's definitely some mid- summer shuffling going on, as I've had singing 
Wood thrush, Veery, Brown Thrasher, and Scarlet Tanager in new places this past 
week. Fascinating to think they disperse a night between broods. Meanwhile 
Yellow Warblers zeeping everywhere- should be a mass exodus tonight.

Ken, in Ithaca NY

Sent from my iPhone

On Jul 20, 2013, at 10:24 AM, "Jeff Wells" 
mailto:jeffwe...@borealbirds.org>> wrote:

And I heard a Wood Thrush overhead around 10 PM a few nights ago here in 
Gardiner, Maine

Jeff Wells

Sent from my iPhone

On Jul 20, 2013, at 4:44 AM, "Ted Floyd" 
mailto:tfl...@aba.org>> wrote:

Hello, everybody.

A quick check-in here from somewhere other than the Cayuga Basin...  :-)

Chipping Sparrows are moving over Lafayette, eastern Boulder County, USA, in 
the 2am hour right now, Saturday, July 20th. We believe that these are birds 
bailing on their mountain breeding grounds for literally greener pastures in 
eastern Colorado and western Kansas, where they molt. Regardless, it's an 
annual phenomenon, beginning in mid-July (first nighttime detection this year 
for me was July 16th), in the night skies over the Denver metro area, and it's 
fascinating to witness.

Ted Floyd
tfl...@aba.org
Lafayette, Boulder County, Colorado
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[nfc-l] Fwd: [cayugabirds-l] Great night flight calls

[Kenneth V. Rosenberg]

Sent from my iPhone

Begin forwarded message:

From: "Kenneth V. Rosenberg" mailto:k...@cornell.edu>>
Date: May 21, 2013 12:19:46 AM EDT
To: CAYUGABIRDS-L 
mailto:cayugabird...@list.cornell.edu>>
Subject: [cayugabirds-l] Great night flight calls
Reply-To: "Kenneth V. Rosenberg" mailto:k...@cornell.edu>>

One of my best spring listening for night flight calls is happening now - in 
the past 15 minutes I've heard nearly 50 thrushes (mostly Swainsons), 6 
BLACK-BILLED CUCKOOS, AMERICAN BITTERN, SOLITARY and SPOTTED SANDPIPERS, etc.

Ken

Sent from my iPhone

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[nfc-l] Fwd: [cayugabirds-l] Great night flight calls

[Kenneth V. Rosenberg]

Sent from my iPhone

Begin forwarded message:

From: "Kenneth V. Rosenberg" mailto:k...@cornell.edu>>
Date: May 21, 2013 12:19:46 AM EDT
To: CAYUGABIRDS-L 
mailto:cayugabird...@list.cornell.edu>>
Subject: [cayugabirds-l] Great night flight calls
Reply-To: "Kenneth V. Rosenberg" mailto:k...@cornell.edu>>

One of my best spring listening for night flight calls is happening now - in 
the past 15 minutes I've heard nearly 50 thrushes (mostly Swainsons), 6 
BLACK-BILLED CUCKOOS, AMERICAN BITTERN, SOLITARY and SPOTTED SANDPIPERS, etc.

Ken

Sent from my iPhone

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