[cobirds] Dinosaur Ridge - Denver Field Ornithologists (30 Apr 2021) 27 Raptors

[reports]

Dinosaur Ridge - Denver Field Ornithologists
Colorado, USA
Daily Raptor Counts: Apr 30, 2021
---

SpeciesDay's CountMonth Total   Season Total
-- --- -- --
Black Vulture0  0  0
Turkey Vulture  10146149
Osprey   1 26 26
Bald Eagle   0  8 21
Northern Harrier 0  4  4
Sharp-shinned Hawk   4112126
Cooper's Hawk1 87 98
Northern Goshawk 0  6 10
Red-shouldered Hawk  0  0  0
Broad-winged Hawk1 30 30
Red-tailed Hawk  5153346
Rough-legged Hawk0  0  1
Swainson's Hawk  2 10 10
Ferruginous Hawk 0  2  9
Golden Eagle 0  3  9
American Kestrel 0117119
Merlin   0  8 12
Peregrine Falcon 1  7 11
Prairie Falcon   0 21 22
Mississippi Kite 0  0  0
Unknown Accipiter0 10 11
Unknown Buteo0  9 18
Unknown Falcon   2  5  7
Unknown Eagle0  0  0
Unknown Raptor   0  4  7

Total:  27768   1046
--

Observation start time: 08:30:00 
Observation end   time: 15:00:00 
Total observation time: 6.5 hours

Official Counter:Dave Hill, Steve Small

Observers:Bea Weaver, Carol Cwiklinski, Cynthia Madsen, Debbie James

Visitors:
Bill King observed with us from 11:00AM to 11:40 AM/


Weather:
Sunny, blue skies all day.  Temperature: 55-74°F.   Wind: NE @ 48 mph,
gusting to 13 mph.

Raptor Observations:
MIGRANTS
10 Turkey Vultures
1 Osprey
4 Sharp-shinned Hawk
1 Cooper's Hawk
1 Broad-winged Hawk
2 Swainson's Hawk
5 Red-tailed Hawk
1 Peregrine Falcon
1 large falcon species
1 small falcon species

LOCAL BIRDS:
1 Turkey Vulture
3 Red-tailed Hawk
1 Peregrine Falcon


Non-raptor Observations:
2 American White Pelican
1 Blue Jay
1 Woodhouse's Scrub-Jay
3 Black-billed Magpie
2 American Crow
3 Common Raven
5 Black-capped Chickadee
1 Mountain Chickadee
1 Red-breasted Nuthatch
4 European Starling
1 Townsend's Solitaire
1 American Robin
4 House Finch
2 Dark-eyed Junco
1 Spotted Towhee
1 Western Meadowlark

Predictions:
Another warm day, light winds, and mostly sunny with a high of 84°F.

Report submitted by DAVID HILL ()
Dinosaur Ridge - Denver Field Ornithologists information may be found at:
http://www.dfobirds.org


More site information at hawkcount.org:  
https://hawkcount.org/siteinfo.php?rsite=123

Site Description:
Dinosaur Ridge is the only regularly staffed hawkwatch in Colorado and is
the best place in the world to see migrating Ferruginous Hawks. Dinosaur
Ridge may be the best place in the country to see the rare dark morph of
the Broad-winged Hawk (a few are seen each spring). Hawkwatchers who linger
long enough may see resident Golden Eagles, Red-tailed Hawks and Prairie
Falcons, in addition to migrating Swainson's, Cooper's and Sharp-shinned
Hawks, American Kestrels and Turkey Vultures. Peregrine Falcons and
Ferruginous Hawks are uncommon; Northern Goshawk is rare but regular.
Non-raptor species include Rock Wren, and sometimes Bushtit, Western
Bluebird, Sandhill Crane, White-throated Swift, American White Pelican or
Dusky Grouse. Birders of any skill level are always welcome.  HawkWatch at
Dinosaur Ridge is generally staffed by volunteers from about 9 AM to around
3 PM from March 1st to May 7th.

Directions to site:
>From exit 259 on I-70 towards Morrison, drive south under freeway and take
left into first parking lot, the Stegosaurus lot. Follow small signs from
the southwest end of lot to the hawkwatch site. The hike starts heading
east on an old two-track and quickly turns south onto a trail on the west
side of the ridge. When the trail nears the top of the ridge, turn left,
head through the gate, and walk to the clearly-visible, flat area at the
crest of the ridge.  (Distance: 0.56 miles, Elevation gain: 259 feet)


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[cobirds] Caspian tern Boulder County

['William Fink' via Colorado Birds]

Still present on the north shore in the area protected by long string of buoys 
at Lake McIntosh at 6:45 on 4-30-21. Here comes May at long last!  Good 
birding. Bill Fink. Longmont 

Sent from my iPhone

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[cobirds] Hummers

[Wayne and Robin Jasper]

FOY 2 Broad-tailed hummers today in Allenspark

Robin Jasper
Boulder Bounty

Sent from my iPhone

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[cobirds] Re: RFI: Gray Vireo - close to I-70

[Steven Rash]

Hi Steve! 

Gray Vireo is a fairly reliable species in Colorado National Monument, like 
you said. The place I have had the most luck is on the small trail that 
goes to the west and north from the Devil's Kitchen Picnic Area. Early 
mornings are typically the best time to visit as it can get fairly warm 
pretty quickly around there. But I have seen them at various times 
throughout the day. 

Best of luck to you! That's a great streak to keep alive. 

Steve Rash
Denver, CO 

On Friday, April 30, 2021 at 1:55:16 PM UTC-6 steveh...@gmail.com wrote:

> We are travelling cross-county during the week of June 7th and will be 
> travelling east through western Colorado on I-70. Does anyone have any tips 
> for finding Gray Vireo west of Grand Junction? I know on eBird that the 
> Colorado National Monument Visitor's center and Rabbit Valley are good 
> places to look, but was hoping for more details from a local. 
>
> I've had at least one life bird in the ABA area each year since I started 
> birding in 1986, I'm hoping to keep the streak alive and GRVI seems like a 
> good target for the trip.  
>
> Thanks in advance,
> Steve Holzman
> South Beach, OR 
>
>
>
>

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[cobirds] Arapahoe / JeffCo Non-Birding Bird Sightings

[Jared Del Rosso]

Haven't been birding, but still listening and looking...

I heard my FOY House Wren from my Centennial, CO yard (Arapahoe Co) this 
morning (4/30). A White-crowned Sparrow was also around.

Yesterday, at Lair o' the Bear Park in Jefferson County, a Steller's Jay 
was a fun sighting. But an old hummingbird nest, right on the trailhead for 
the creek trail and low (3.5-4' off the ground) was the real treasure. (I 
should have noted the plant, but I was so enamored by the nest.) Also, a 
few butterflies -- a Mourning Cloak and what appeared to be some sort of 
Fritillary.

Finally, to add a bit on the bluebird conversation, a recent post to the 
Wisconsin state birding email list addressed the dearth of Eastern 
Bluebirds up there this spring. 

- Jared


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[cobirds] RFI: Gray Vireo - close to I-70

[Stephen Holzman]

We are travelling cross-county during the week of June 7th and will be 
travelling east through western Colorado on I-70. Does anyone have any tips 
for finding Gray Vireo west of Grand Junction? I know on eBird that the 
Colorado National Monument Visitor's center and Rabbit Valley are good 
places to look, but was hoping for more details from a local. 

I've had at least one life bird in the ABA area each year since I started 
birding in 1986, I'm hoping to keep the streak alive and GRVI seems like a 
good target for the trip.  

Thanks in advance,
Steve Holzman
South Beach, OR 



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[cobirds] Bird Conservancy of the Rockies - Chatfield Banding Report 4/29 & 30

[meredith]

Two of the slowest days ever, in probably the slowest week ever for spring 
migration here.  I hope migration is just late, or we are in for a dreary 
season!

Yesterday (Thursday) we banded 4 birds and had one return:

Black-capped Chickadee 1
White-breasted Nuthatch 1
Song Sparrow 1, banded 2018
Dark-eyed Junco, Oregon 1
Dark-eyed Junco, Pink-sided 1

Today (Friday) we banded only 3 birds, but at least had a migrant:

Common Yellowthroat 1 (like Steve Brown, this was a late first arrival for 
this species)
Song Sparrow 1
Dark-eyed Junco, Pink-sided 1

We are open six days per week (closed Tuesdays) through May 30. While some 
COVID related restrictions remain in place, there are opportunities most 
mornings for the public to visit, but reservations are required.  Visit 
https://denveraudubon.org/events/ 

 for 
more information and to sign-up.  Because each hour-long session is limited 
to 10 people, we anticipate selling out most mornings, so register soon if 
you are interested!

Meredith McBurney
Bander, Chatfield Station
Bird Conservancy of the Rockies

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[cobirds] Two FOY year birds near Storm Mountain, Larimer Cty.

[Dave Hyde]

Hi CObirders, we had a FOY Broad-tailed hummingbird here this morning and two 
Violet-green swallows! And not a cloud in the sky here – Dave Hyde/nr. Storm 
Mountain/Larimer Cty.

Sent from Mail for Windows 10

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Re: [cobirds] Re: FOY Common Yellowthroat, CSR, El Paso Co, Thurs

[Steven Brown]

Chiming in again about COYE…. migrants may well be by-passing us, but COYE is 
an abundant nesting species at CSR. Usually the place is cacophonous with their 
songs. I’ve seen one male so far, and only for about 2 minutes. No others have 
arrived here yet. Same for House Wrens, they are thick nesting here, and I’ve 
seen one or two so far.

And an FOY Chipping Sparrow today - but they are usual after May 1 here. (Last 
year I had “0” in April, and 90 on May 2!!!). Other than that - with the 
forecast for lots of migrant passing over CO last night - it was obvious NONE 
of the stopped at CSR!!! I caught 4 birds today, 2 of them recaptured 
White-crowns banded earlier.

Sigh.

Steve Brown
COS

> On Apr 30, 2021, at 8:50 AM, Diana Beatty  wrote:
> 
> FWIW, I keep track of some weather data, plants blooming, etc., and spring is 
> late this year in my yard.  Plants are blooming behind schedule multiple 
> weeks late, first sightings of all kinds of wildlife, not just birds, is 
> later, temperatures have been cooler all spring on average than other recent 
> years, etc.  
> 
> Diana Beatty
> El Paso County
> 
> On Fri, Apr 30, 2021 at 8:42 AM 'The Nunn Guy' via Colorado Birds 
> mailto:cobirds@googlegroups.com>> wrote:
> Hi all
> 
> I wonder if answer is as simple (of complex) as maybe migrating birds simply 
> not stopping in Colorado, drought, loss of habitat in Colorado, taking 
> different paths, weather challenges, lack of food sources, other???
> 
> 
> 
> Also, a study  (2019) 
> released in the journal Nature Climate Change suggests "that rising 
> temperatures are causing birds to migrate a little earlier each spring. It 
> finds that the journey home is shifting forward by a little less than two 
> days each decade. The researchers, led by Kyle Horton of Colorado State 
> University, analyzed millions of radar scans collected between 1995 and 2018. 
> They used a high-tech method to differentiate between migrating birds and 
> weather systems—a special type of artificial intelligence known as a neural 
> network. Neural networks rely on complex sets of algorithms and can be 
> trained to recognize patterns in data."
> 
> Sort of suggests we should be seeing migrating birds earlier than anticipated.
> 
> Thanks, Gary Lefko, Nunn
> http://www.friendsofthepawneegrassland.org/ 
> 
> https://www.inaturalist.org/projects/birds-and-more-of-the-pawnee-national-grassland
>  
> 
> On Thursday, April 29, 2021 at 11:48:33 AM UTC-6 Steve wrote:
> Hey COBirders,
> 
> No big news for Clear Spring Ranch banding today, except that among the very 
> few birds banded today was my FOY Common Yellowthroat, Ad Male.  This is not 
> rare, but what is unusual is that this is by far the latest for my FOY at 
> CSR. I usually catch them starting Day One, around 4/20. Migration is delayed 
> here, for whatever reason.
> 
> So far in a week I’ve banded 60 birds, 1/2 of which are White-crowned 
> Sparrows that winter here and will be leaving soon. 3 Ruby-crowned Kinglets, 
> 1 Audubon’s Warbler, 1 Wilson’s Warbler, 10 Lincoln's Sparrows.
> 1 House Wren. Pretty slow to date.
> 
> A cool sighting for me, though, was a large flock of American Pipits  (50+) 
> all over a hayfield that was freshly disked yesterday. And I think one was a 
> victim of the resident Am Kestrel, as one was feeding on the ground out 
> there, and nothing else was in the field except Mourning Doves.
> 
> On the way out, the 20 White-faced Ibis and 2 Long-billed Curlew were present 
> by the entrance road. That’s cool.
> 
> Steve Brown
> Colo Spgs
> 
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> 
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> bird species and location in the subject line when appropriate
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> 
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>  
> .
> 
> 
> -- 
> **
> 
> All that is gold does not glitter, 

[cobirds] timing for cliff swallows showing up in Fairplay this year?

['Michael Jones' via Colorado Birds]

Anyone have an idea/estimate when the cliff swallows might be showing up 
and beginning to build their nests this year in Fairplay?  Any help 
appreciated.  Thanks.

Michael Lee Jones
Certified Senior Ecologist
High Prairie Environmental LLC

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Re: [cobirds] Re: FOY Common Yellowthroat, CSR, El Paso Co, Thurs

[Diana Beatty]

FWIW, I keep track of some weather data, plants blooming, etc., and spring
is late this year in my yard.  Plants are blooming behind schedule multiple
weeks late, first sightings of all kinds of wildlife, not just birds, is
later, temperatures have been cooler all spring on average than other
recent years, etc.

Diana Beatty
El Paso County

On Fri, Apr 30, 2021 at 8:42 AM 'The Nunn Guy' via Colorado Birds <
cobirds@googlegroups.com> wrote:

> Hi all
>
> I wonder if answer is as simple (of complex) as maybe migrating birds
> simply not stopping in Colorado, drought, loss of habitat in Colorado,
> taking different paths, weather challenges, lack of food sources, other???
>
> [image: flyway.JPG]
>
> Also, a study  (2019)
> released in the journal *Nature Climate Change* suggests "that rising
> temperatures are causing birds to migrate a little earlier each spring. It
> finds that the journey home is shifting forward by a little less than two
> days each decade. The researchers, led by Kyle Horton of Colorado State
> University, analyzed millions of radar scans collected between 1995 and
> 2018. They used a high-tech method to differentiate between migrating birds
> and weather systems—a special type of artificial intelligence known as a
> neural network. Neural networks rely on complex sets of algorithms and can
> be trained to recognize patterns in data."
>
> Sort of suggests we should be seeing migrating birds earlier than
> anticipated.
>
> Thanks, Gary Lefko, Nunn
> http://www.friendsofthepawneegrassland.org/
>
> https://www.inaturalist.org/projects/birds-and-more-of-the-pawnee-national-grassland
>
> On Thursday, April 29, 2021 at 11:48:33 AM UTC-6 Steve wrote:
>
>> Hey COBirders,
>>
>> No big news for Clear Spring Ranch banding today, except that among the
>> very few birds banded today was my FOY *Common Yellowthroat*, Ad Male.
>> This is not rare, but what is unusual is that this is by far the latest for
>> my FOY at CSR. I usually catch them starting Day One, around 4/20.
>> Migration is delayed here, for whatever reason.
>>
>> So far in a week I’ve banded 60 birds, 1/2 of which are White-crowned
>> Sparrows that winter here and will be leaving soon. 3 Ruby-crowned
>> Kinglets, 1 Audubon’s Warbler, 1 Wilson’s Warbler, 10 Lincoln's Sparrows.
>> 1 House Wren. Pretty slow to date.
>>
>> A cool sighting for me, though, was a large flock of American Pipits
>>  (50+) all over a hayfield that was freshly disked yesterday. And I think
>> one was a victim of the resident Am Kestrel, as one was feeding on the
>> ground out there, and nothing else was in the field except Mourning Doves.
>>
>> On the way out, the 20 White-faced Ibis and 2 Long-billed Curlew were
>> present by the entrance road. That’s cool.
>>
>> Steve Brown
>> Colo Spgs
>>
> --
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> bird species and location in the subject line when appropriate
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> 
> .
>


-- 

**

All that is gold does not glitter, not all those who wander are lost; the
old that is strong does not wither, deep roots are not reached by the frost.

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[cobirds] Re: FOY Common Yellowthroat, CSR, El Paso Co, Thurs

['The Nunn Guy' via Colorado Birds]

Hi all

I wonder if answer is as simple (of complex) as maybe migrating birds 
simply not stopping in Colorado, drought, loss of habitat in Colorado, 
taking different paths, weather challenges, lack of food sources, other???

[image: flyway.JPG]

Also, a study  (2019) 
released in the journal *Nature Climate Change* suggests "that rising 
temperatures are causing birds to migrate a little earlier each spring. It 
finds that the journey home is shifting forward by a little less than two 
days each decade. The researchers, led by Kyle Horton of Colorado State 
University, analyzed millions of radar scans collected between 1995 and 
2018. They used a high-tech method to differentiate between migrating birds 
and weather systems—a special type of artificial intelligence known as a 
neural network. Neural networks rely on complex sets of algorithms and can 
be trained to recognize patterns in data."

Sort of suggests we should be seeing migrating birds earlier than 
anticipated.

Thanks, Gary Lefko, Nunn
http://www.friendsofthepawneegrassland.org/
https://www.inaturalist.org/projects/birds-and-more-of-the-pawnee-national-grassland

On Thursday, April 29, 2021 at 11:48:33 AM UTC-6 Steve wrote:

> Hey COBirders,
>
> No big news for Clear Spring Ranch banding today, except that among the 
> very few birds banded today was my FOY *Common Yellowthroat*, Ad Male. 
>  This is not rare, but what is unusual is that this is by far the latest 
> for my FOY at CSR. I usually catch them starting Day One, around 4/20. 
> Migration is delayed here, for whatever reason.
>
> So far in a week I’ve banded 60 birds, 1/2 of which are White-crowned 
> Sparrows that winter here and will be leaving soon. 3 Ruby-crowned 
> Kinglets, 1 Audubon’s Warbler, 1 Wilson’s Warbler, 10 Lincoln's Sparrows.
> 1 House Wren. Pretty slow to date.
>
> A cool sighting for me, though, was a large flock of American Pipits 
>  (50+) all over a hayfield that was freshly disked yesterday. And I think 
> one was a victim of the resident Am Kestrel, as one was feeding on the 
> ground out there, and nothing else was in the field except Mourning Doves.
>
> On the way out, the 20 White-faced Ibis and 2 Long-billed Curlew were 
> present by the entrance road. That’s cool.
>
> Steve Brown
> Colo Spgs
>

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