[cobirds] Colorado Christmas Bird Count dates

[Brandon]

We are less than a month away from the first Colorado Christmas Bird Counts
of the season.  Here is a list of dates that have been entered into the
Christmas Bird Count Website, so far.  I haven't heard of any counts not
happening so far.  I will update this list again next week, as I expect
most compilers will enter their date for their Christmas Bird Count soon.

*Air Force Academy 5-Jan-2022*
Aspen
*Black Forest 2-Jan-2022*
*Barr Lake 2-Jan-2022*
Boulder
Bonny Reservoir
Cortez
Crook
*Colorado Springs 18-Dec-2021*
*Crow Valley 18-Dec-2021*
Douglas County
Denver
*Delta 18-Dec-2021*
*Dotsero 17-Dec-2021*
*Durango 18-Dec-2021*
*Denver (Urban) 1-Jan-2022*
*Evergreen-Idaho Springs 19-Dec-2021*
Eagle Valley
Fairplay
Fort Collins
Flagler
*Fountain Creek 15-Dec-2021*
Granby
Grand Junction
Grand Mesa
Greeley
Great Sand Dunes National Park
Gunnison
Hotchkiss
*John Martin Reservoir 14-Dec-2021*
Lake Isabel
Longmont
*Loveland 1-Jan-2022*
*Montrose 19-Dec-2021*
Monte Vista NWR
*North Jeffco 19-Dec-2021*
North Park
*Nunn 19-Dec-2021*
*Pawnee Buttes 31-Dec-2021*
*Penrose 19-Dec-2021*
Pinon Canyon
*Pawnee National Grasslands-East 24-Dec-2021*
Pueblo Reservoir
*Pagosa Springs 18-Dec-2021*
*Pueblo 16-Dec-2021*
Rawhide Energy Station
Roaring Fork River Valley
Rocky Mountain National Park
*Rocky Ford 15-Dec-2021*
*Salida 17-Dec-2021*
Sterling
Spanish Peaks
Steamboat Springs
Summit County
Westcliffe
Weldona-Fort Morgan

Brandon Percival
Colorado Christmas Bird Count Regional Editor
Pueblo West, CO

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[cobirds] Migrating cranes (Douglas County)

[Barbara Spagnuolo]

Just watched a small flock of 14 Sandhill Cranes gracefully soaring and heading 
south right over my house in Highlands Ranch near Colorado Blvd & C470. Thought 
I had missed my chance this migration season, so I was glad to be sitting 
outside at the right moment today! 
-Barbara Spagnuolo, Highlands Ranch (Douglas County) 


Sent from my iPhone

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[cobirds] White-winged Scoters continue, Baseline Res — Boulder

[Laura Steadman]

The 4 scoters reported on ebird yesterday at Baseline Reservoir in Boulder
were still present this afternoon. Way out in the northeast/central area. I
scoped from Dry Creek and was glad I carried it in with me. Would probably
be visible from the north side of the reservoir, but probably not from the
west side.

Good birding,
Laura Steadman
Boulder

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[cobirds] On Mexican Ducks and the notion that not every bird is identifiable

[Peter Burke]

COBirders,
A bit of armchair birding on my part. There have been several migrant
waterfowl reported in Boulder County this weekend. In addition, a male
Mexican Duck has been reported at Hecla Lake in Lafayette. I'm not sure if
a Mexican Duck is considered to be a migrant, vagrant or resident in
Northern Colorado in November, but it's a good bird in any respect.

While I've yet to see this bird in person, I've seen some excellent photos
on eBird. There has been quite a bit of chatter regarding the slightly
curled tail feathers (upper tail coverts), which I've often heard are
evidence of Mallard genes. A little bit of Googling revealed several
excellent articles on the topic, among them: a 2012 essay in Colorado Birds

by Tony Leukering and Steve Mlodinow arguing for full species status for
Mexican Duck. (The AOS split Mallard and Mexican Duck in 2020.) Jack
Bushong wrote a thorough article  on the
field identification of Mexican Ducks for the ABA website, which also has a
terrific photo essay  by
Steve Mlodinow. Steve argues that "pure" Mexican Ducks *can* exhibit
Mallard-like features, like the curly tail feathers.

So how comfortable can we be in identifying Mexican Ducks in Northern
Colorado? I'd be interested to learn what others have to say on this topic.
But one thing is certain -- we should all brush up on the differences
between these two species and make an effort to document sightings in
eBird, particularly with photos, keeping in mind that selecting
"Mallard/Mexican Duck" is a good option when one is not certain.


If the links embedded in the post don't work, here are the URLs:
*Leukering/Mlodinow* -
http://web.corral.tacc.utexas.edu/UAF/arctos/mediaUploads/demboski/In_the_Scope_CB_October_2012.pdf
*Bushong* - https://www.aba.org/mexican-duck/
*Mlodinow* - https://www.aba.org/mexican-duck-photo-essay/


Good birding,

Peter Burke
Managing Editor, Colorado Birds
edi...@cobirds.org

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[cobirds] Pueblo Reservoir, Pueblo Co. 11/14

[Brandon]

Good day around Pueblo Reservoir area, Pueblo County.  Saw 1 Red-throated,
1 Pacific, 5 Common Loons, 2 Red-necked Grebes, 3 Surf Scoters, Great
Black-backed Gull, 2 Lesser Black-backed Gulls, a Greater Yellowlegs, a
Lincoln's Sparrow, a few Lesser Goldfinches.  A fun morning, calm winds
helped a lot.

Brandon Percival
Pueblo West, CO

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[cobirds] Ross’s geese on Dodd

[elena]

Yesterday I wrote that there were three snow geese on Dodd reservoir (Boulder 
County, Niwot/Monarch Roads and 75th St) but I didn’t have a scope. Looking at 
them this morning they appear to be Ross’s geese, along with hundreds of 
cackling geese and a few hybrids. I welcome corrections! A beautiful morning to 
be out birding, for sure. 

Sent from my iPhone
Elena Holly Klaver
Federally Certified Court Interpreter
Conference Interpreter
English <> Spanish
303 475 5189

Member: American Translators Association
Colorado Translators Association 
Pronouns: she, her, hers

I acknowledge that I live in the territory of Hinóno’éí (Arapaho), Cheyenne and 
Ute Nations, according to the 1851 Treaty of Fort Laramie, and that Colorado’s 
Front Range is home to many Native peoples. Reconozco que vivo en el territorio 
de las naciones Hinóno’éí (Arapaho), Cheyenne y Ute, según el 1851 Tratado de 
Fort Laramie, y que el estado de Colorado al esté de las Montañas Rocosas es 
territorio de muchos pueblos indígenas. 


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