[cobirds] Cassia Crossbills in Grand Co., Colorado- belated report

[Christian Nunes]

Hi all,

I'm sorry this is so tardy, but I just received confirmation from Tim Spahr and 
Matt Young that some crossbills I recorded in Grand County on 16 July 2021 are 
CASSIA CROSSBILLS. This would represent a new species for Colorado. I've 
submitted the record for review by the Colorado Rare Bird Records Committee.

All of the details, including sound recordings, are in my eBird checklist: 
https://ebird.org/checklist/S91855481

The Cassia Crossbill was elevated to the species level by the American 
Ornithological Society in 2017. They were formerly known as "Type 9" Red 
Crossbills. They are thought to be endemic to the South Hills and Albion 
Mountains of southern Idaho. A large swath of the South Hills burned in 2020, 
so those birds had to go somewhere. Why not Colorado?


It wasn't until last week that I remembered I even had the tracks on my 
recorder. I downloaded the files and started to analyze them hoping for good 
tracks of Type 5 "Lodgepole Pine" Red Crossbills. Things just didn't look right 
when I saw the calls on the spectrogram. The calls resembled a horizontally 
flipped lower case "h". These calls matched Cassia Crossbill when compared to 
examples on eBird, within resources like 
https://ebird.org/news/crossbills-of-north-america-species-and-red-crossbill-call-types/
 , and in Nathan Pieplow's "Peterson Field Guide to Bird Sounds of Western 
North America".


The exact location is in my eBird checklist. Folks may still want to go look in 
case the birds have stuck around. They are normally more sedentary than other 
crossbills. But, no guaranteess that Grand Co. Rd 555 is open at this time of 
year. Google Maps shows it as closed, but who knows. It's a good dirt road and 
would be drivable with any vehicle as long as there isnt' any snow or mud.

Happy birding,


Christian Nunes

Longmont, CO

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[cobirds] October 2021 Birds, Woodland Park Yard Area and Beyond

[joe...@betterbirdwatching.com]

October 2021 Birds, Woodland Park Yard Area and Beyond


Bald Eagle-
South Platte area near Lake George on 10-20, along river, went down for fish

Northern Harrier-
S of Divide on 10-20

Sandhill Crane-
Pond N of Hwy. 24, E of Antero Junction, SE of Antero Res.- 12 on 10-18, 
stopover, in AM, gone in PM, on way to Bosque?, saw at 7:15 AM, sunrise

Gray Jay-
Colorado Trail- Cataract Falls to Elk Ridge on 10-4, a few
Colorado Trail- Union Creek Ski Access to Janets Cabin on 10-11, a few, 
friendly at beg,
Colorado Trail- Fooses Creek TH S to top of Cont Divide on 10-25, from 
10,000 to 11,000

Woodhouses Scrub-Jay-
Safeway on 30th St. in Colo Spgs on 10-7

Clark’s Nutcracker-
Colorado Trail S from Clear Creek Res. to Waverly Ridge Top on 10-18, 2

Ruby-crowned Kinglet- 10-13, 10-6, 3 on 10-5, sang briefly

Golden-crowned Kinglet-
Colorado Trail- Fooses Creek TH S to top of Cont Divide on 10-25, at 10,000 
to 10,500

Western Bluebird- About 20 flyover on 10-19

American Robin- 10-9, 4 on 10-7
Colorado Trail- Cataract Falls to Elk Ridge on 10-4, along FS 746
South Platte area near Lake George on 10-20, flock of about 40

Townsend’s Solitaire-
Colorado Trail- Cataract Falls to Elk Ridge on 10-4, 2

Rock Wren-
Colorado Trail- Union Creek Ski Access to Janets Cabin on 10-11, at 10,750, 
high altitude oddity

American Dipper-
Safeway in Colo Spgs on 30th St. on 10-8, sing
South Platte area near Lake George on 10-20, 2
Colorado Trail- Fooses Creek TH S to top of Cont Divide on 10-25, 2 terr. 
chasing

Mountain Chickadee-
Colorado Trail- Cataract Falls to Elk Ridge on 10-4, sang a few times, 
young one practicing

Bushtit-
Dome Rock SWA on 10-20, 6

Red-breasted Nuthatch- 10-7

White-breasted Nuthatch- 10-24, 10-19, 10-3, 10-1, 10-27, 10-26

Brown Creeper-
Colorado Trail- Fooses Creek TH S to top of Cont Divide on 10-25, 10,500

Yellow-rumped Warbler- a few on 10-10, 10-9, 10-6, 10-1

Green-tailed Towhee- 10-5

Spotted Towhee-
Safeway on 30th St. in Colo Spgs on 10-7, calling

White-crowned Sparrow
Colorado Trail- Cataract Falls to Elk Ridge on 10-4, a couple calling at 
around 11,600

Song Sparrow-
South Platte area near Lake George on 10-20, calling

Dark-eyed Junco-
Slate-colored- FOS on 10-19, 10-24, 1 on 10-26
Pink-sided- FOS on 10-10, 2 on 10-12, 2 on 10-26
White-winged- FOS on 10-26
Colorado Trail- Cataract Falls to Elk Ridge on 10-4, sang a few times below 
trreeline, young one practicing

Evening Grosbeak- a few on 10-3

Pine Siskin- 10-13, 10-10, 10-1

Red Crossbill-
CT S from Clear Creek Res. to Waverly Ridge Top on 10-18, a couple small 
flocks

Abert’s Squirrel- 10-17, 10-27, 10-26

Moose-
Colorado Trail- Cataract Falls to Elk Ridge on 10-4, young bull at 
intersection of FS 714 and 726, huge bull on drive home on W side of 
highway in large willow riparian area heading up to Tenn Pass

Cabbage Moth-
Colorado Trail- Union Creek Ski Access to Janets Cabin on 10-11, at 10,500


Joe LaFleur
Woodland Park, Teller Cty., 8500 feet
 
 

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[cobirds] Aiken Audubon Virtual Program tonight - Scott Somershoe

[linda hodges]

Greetings, birders,

If you've not yet seen Scott Somershoe's Green Big Year presentation, or 
need an update on his latest sightings, please join us tonight.

The Colorado birding community lost one of its pillars when Joe Roller 
passed away in November 2020. Joe was a fount of birding lore and loved 
people as much as birds. Many considered him a beloved friend. To honor 
Joe’s legacy, Scott partnered with Colorado Field Ornithologists (CFO) and 
created the Joe Roller Memorial Grant to support bird research in Colorado. 
The grant will be initially funded by pledges raised through Scott’s 2021 
Green Big Year, a green (carbon-free) birding initiative. Scott will give a 
first-hand account of his Green Big Year that has tallied more than 250 
species within biking distance of his home in Littleton, CO.
 

 [image: Scott Somershoe.jpg]

Wednesday, Nov 17
7:00 pm MST

Join Zoom Meeting
https://us06web.zoom.us/j/89160241130?pwd=Z1U4ZGlZYmsrcjhEQ3JYWjkxYlVsZz09 

Meeting ID: 891 6024 1130
Passcode: 096811

*Linda Hodges*
*Aiken Audubon*
*El Paso County*

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[cobirds] Goshawk at home, Ken Caryl Valley, JeffCo

[David Suddjian]

I pulled into the driveway early this morning to find an adult Northern Goshawk 
perched low in a tree in my front yard. It was on the very same perch where an 
adult Sharp-shinned paused yesterday in her hunt. 

David Suddjian 
Ken Caryl Valley 
Littleton CO
Sent from my iPhone

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