Monday, 16 March 2026

[cobirds] Dinosaur Ridge - Denver Field Ornithologists (16 Mar 2026) 16 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA

Daily Raptor Counts: Mar 16, 2026
SpeciesDay's CountMonth TotalSeason Total
Black Vulture000
Turkey Vulture000
Osprey000
Bald Eagle066
Northern Harrier000
Sharp-shinned Hawk122
Cooper's Hawk055
American Goshawk000
Red-shouldered Hawk000
Broad-winged Hawk000
Red-tailed Hawk144646
Rough-legged Hawk000
Swainson's Hawk000
Ferruginous Hawk166
Golden Eagle011
American Kestrel011
Merlin000
Peregrine Falcon000
Prairie Falcon022
Mississippi Kite000
Unknown Accipitrine000
Unknown Buteo000
Unknown Falcon011
Unknown Eagle000
Unknown Raptor000
Total:167070


Observation start time: 09:00:00
Observation end time: 17:00:00
Total observation time: 8 hours
Official CounterEmma Riley
Observers: Audrey Anderson, Soren Zappia



Visitors:
We interacted with 8 visitors today, including one woman who was apart of a hiking group that noticed the Hawk Watch this morning and came back this afternoon. We were excited to have Audrey Anderson, one of last year's counters, back on the ridge with us today! Thanks to Mike Serruto for volunteering today for his weekly Monday shift.

Weather:
The ridge was a winter wonderland this morning with a few inches of snow on the trail and all of the trees. Winds were very calm from the SE and the sun was shining. The second half of the day saw stronger winds shifting to the W/NW. With the strong winds came cooler temperatures, making it a brisk afternoon and early evening.

Raptor Observations:
The first few hours of the day were virtually still but beautiful. In the early afternoon we started to see low and close Red-tailed Hawks coming overhead/east of us and catching the same thermal before continuing north. Migrants were also seen over Green Mountain, including the one Ferruginous Hawk of the day. Most of our migrants came in a short span before the winds picked up. We saw our FOY Ruby-crowned Kinglet, and a few more White-throated Swifts again today. There was also a stronger than normal American Crow presence today.

Non-raptor Observations:
White-throated Swift 2, Woodhouse's Scrub Jay 1, Black-billed Magpie 1, American Crow 6, Common Raven 3, Black-capped Chickadee 2, American Bushtit 9, Ruby-crowned Kinglet 1, Townsend's Solitaire 1, American Robin 5, House Finch 3, Pine Siskin 10, Dark-eyed Junco 2, Spotted Towhee 2, Western Meadowlark 1

Predictions:
Temperatures continue to rise tomorrow as we approach the hot days expected at the end of the week. Winds might get up to 30 mph tomorrow afternoon out of the W.


Report submitted by Official Counter of the day shown above (dinoridgehw@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: www.dinosaurridgehawkwatch.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]
Count data submitted via Trektellen.org - [Project Details]




Site Description
Dinosaur Ridge is the only regularly staffed hawk watch in Colorado and is the
best place in the world to see migrating Ferruginous Hawks. Hawk watchers may
see 17 species of migrating raptors; and it is an excellent site to see rare
dark morph buteos including Broad-winged hawk, Swainson's hawk, Ferruginous
hawk, Rough-legged hawk and Red-tailed Hawk. Other raptors we see include Golden
and Bald Eagles, Northern harrier, Osprey, Peregrine Falcons, Prairie Falcons,
Cooper's and Sharp-shinned Hawks, American Kestrels, Merlin, and Turkey
Vultures. American Goshawk is uncommon but also counted each season. Non-raptor
species include Rock Wren, Bushtit, Western Bluebird, Sandhill Crane,
White-throated Swift, and American White Pelican. Birders of any skill level are
always welcome. The hawk watch at Dinosaur Ridge is staffed by Hawk Counter(s)
and volunteers from March through early May.

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 hawk watch signs from the
southwest end of the parking lot to the hawk watch 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, and walk to
the flat area at the crest of the ridge. (Distance: 0.56 miles, Elevation gain:
259 feet)

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[cobirds] Re: wd 39

There is a group that is recording the Denver goose population and you can report it here: https://survey123.arcgis.com/share/4634a18461f144d48b30a74e7be8977f


On Sunday, March 15, 2026 at 11:43:20 AM UTC-6 linda purcell wrote:
Hi there!   we observed banded Canada Goose WD39 today in Barnum Park.    i suspect the band number, location, date can be reported to an agency, however I do want to report to the correct agency.     
Linda Purcell 
Denver, CO 

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[cobirds] barn swallows in your barn, shed, garage, porch?

Greetings!

Thought its cold and snowy this morning, the barn swallows will soon be here setting up their breeding sites. 

We are interested in collaborating with home owners who host barn swallows during their breeding season. We are especially looking for breeding sites in the foothills  (Gold and Lee Hill, Four Mile and Sunshine Canyons) and near Louisville, Erie, and Lafayette but are happy to hear about any and all nesting sites!

If you are amenable to the presence of our research team's presence at times that are convenient to you throughout late spring and summer, please reach out!

I have been studying barn swallows around the world for nearly three decades. This summer, we are trying to learn more about why their populations are declining.  To read more about our group, go here: https://www.safran-lab.com/

If you have hosting barn swallows (and their nests) on your property and are interested in joining our study, please write to rebecca.safran@colorado.edu.

thanks so much!

Becca and team

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Sunday, 15 March 2026

RE: [cobirds] wd 39

Linda,

By chance was that bird squeaky in flight?  I bet the next one the organization banded (WD40) was much quieter. 

 

Sorry.

 

Dave Leatherman

Fort Collins

 

From: cobirds@googlegroups.com <cobirds@googlegroups.com> On Behalf Of linda purcell
Sent: Sunday, March 15, 2026 11:43 AM
To: Colorado Birds <cobirds@googlegroups.com>
Subject: [cobirds] wd 39

 

Hi there!   we observed banded Canada Goose WD39 today in Barnum Park.    i suspect the band number, location, date can be reported to an agency, however I do want to report to the correct agency.     

Linda Purcell 

Denver, CO 

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[cobirds] Dinosaur Ridge - Denver Field Ornithologists (15 Mar 2026) Raptors

Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA

Daily Raptor Counts: Mar 15, 2026
SpeciesDay's CountMonth TotalSeason Total
Black Vulture000
Turkey Vulture000
Osprey000
Bald Eagle066
Northern Harrier000
Sharp-shinned Hawk011
Cooper's Hawk055
American Goshawk000
Red-shouldered Hawk000
Broad-winged Hawk000
Red-tailed Hawk03232
Rough-legged Hawk000
Swainson's Hawk000
Ferruginous Hawk055
Golden Eagle011
American Kestrel011
Merlin000
Peregrine Falcon000
Prairie Falcon022
Mississippi Kite000
Unknown Accipitrine000
Unknown Buteo000
Unknown Falcon011
Unknown Eagle000
Unknown Raptor000
Total:05454


Observation start time: 09:00:00
Observation end time: 12:00:00
Total observation time: 3 hours
Official CounterEmma Riley, Soren Zappia
Observers: Marina Prado-Echeagaray



Visitors:
Visitors stayed home today- zero seen.

Weather:
It was a snowy and cold day on the ridge today with very limited visibility to start with. Precipitation wasn't originally predicted to linger for the day but alas, the predictions were wrong. The count was ended early at 1300 MST due to low visibility and high precipitation.

Raptor Observations:
One lone male American Kestrel was seen hovering and perched on a nearby phone line. Zero migrants were seen today. We had a nice variety of Dark-eyed Juncos today with Oregon, Slate-colored, Gray-headed, and Pink-sided all seen! Mountain Bluebirds also added some color to the otherwise white day.

Non-raptor Observations:
Northern Flicker 1, Woodhouse's Scrub Jay 1, Black-billed Magpie 1, Common Raven 3, Black-capped Chickadee 1, Mountain Bluebird 26, Dark-eyed Junco 4, Dark-eyed Junco (Oregon) 2, Dark-eyed Junco (Slate-colored) 1

Predictions:
Temperatures will pick up back up a bit tomorrow to a nice mild before we reach the heat that's expected at the end of the week. Winds are predicted to be a bit all over the place at a moderate breeze. The trail will likely be muddy!


Report submitted by Official Counter of the day shown above (dinoridgehw@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: www.dinosaurridgehawkwatch.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]
Count data submitted via Trektellen.org - [Project Details]




Site Description
Dinosaur Ridge is the only regularly staffed hawk watch in Colorado and is the
best place in the world to see migrating Ferruginous Hawks. Hawk watchers may
see 17 species of migrating raptors; and it is an excellent site to see rare
dark morph buteos including Broad-winged hawk, Swainson’s hawk, Ferruginous
hawk, Rough-legged hawk and Red-tailed Hawk. Other raptors we see include Golden
and Bald Eagles, Northern harrier, Osprey, Peregrine Falcons, Prairie Falcons,
Cooper's and Sharp-shinned Hawks, American Kestrels, Merlin, and Turkey
Vultures. American Goshawk is uncommon but also counted each season. Non-raptor
species include Rock Wren, Bushtit, Western Bluebird, Sandhill Crane,
White-throated Swift, and American White Pelican. Birders of any skill level are
always welcome. The hawk watch at Dinosaur Ridge is staffed by Hawk Counter(s)
and volunteers from March through early May.

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 hawk watch signs from the
southwest end of the parking lot to the hawk watch 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, and walk to
the flat area at the crest of the ridge. (Distance: 0.56 miles, Elevation gain:
259 feet)

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Re: [cobirds] wd 39 Bird Banding Lab link

DSC06203_cop.JPG

On Sunday, March 15, 2026 at 1:10:16 PM UTC-6 Susan Rosine wrote:
On Sun, Mar 15, 2026, 11:43 AM linda purcell <linpur...@gmail.com> wrote:
Hi there!   we observed banded Canada Goose WD39 today in Barnum Park.    i suspect the band number, location, date can be reported to an agency, however I do want to report to the correct agency.     
Linda Purcell 
Denver, CO 

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Re: [cobirds] wd 39 Bird Banding Lab link


Susan Rosine
Brighton Adams County 

On Sun, Mar 15, 2026, 11:43 AM linda purcell <linpurcellzz@gmail.com> wrote:
Hi there!   we observed banded Canada Goose WD39 today in Barnum Park.    i suspect the band number, location, date can be reported to an agency, however I do want to report to the correct agency.     
Linda Purcell 
Denver, CO 

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