Thursday, 17 April 2025

[cobirds] Dinosaur Ridge - Denver Field Ornithologists (17 Apr 2025) 21 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA

Daily Raptor Counts: Apr 17, 2025
SpeciesDay's CountMonth TotalSeason Total
Black Vulture000
Turkey Vulture13247288
Osprey23943
Bald Eagle01340
Northern Harrier03341
Sharp-shinned Hawk1159187
Cooper's Hawk0159208
American Goshawk012
Red-shouldered Hawk000
Broad-winged Hawk37575
Red-tailed Hawk0136401
Rough-legged Hawk002
Swainson's Hawk01414
Ferruginous Hawk01227
Golden Eagle0322
American Kestrel1404506
Merlin0712
Peregrine Falcon1710
Prairie Falcon013
Mississippi Kite000
Unknown Accipitrine034
Unknown Buteo011
Unknown Falcon000
Unknown Eagle000
Unknown Raptor045
Total:2113181891


Observation start time: 09:00:00
Observation end time: 14:00:00
Total observation time: 5 hours
Official CounterEmma Riley, Audrey Anderson
Observers: Ajit Antony, Alex Sell, Chip Dawes, Jeff Birek, Sage Church



Visitors:
Thank you to all who helped us spot birds today! Despite the winds it seemed as though everyone got good looks at at least a few raptors today. We had a total of 10 visitors on the ridge today, including Alex Sell, a birding guide from Chicago that was out in CO guiding for leks. Can't make it out to the ridge and still want to follow along? Check out our Trektellen page and follow along with live updates at https://www.trektellen.org/count/view/4515/20250301 .

Weather:
The cold front came in the form of moderate winds from the start of the day, coming from the SW. Clouds were scattered and it felt nice and warm out when the sun wasn't covered. Within the 1200 MST hour the winds shifted to the NE, cloud coverage increased, and wind speeds picked up to a 5-6 on the Beaufort scale. The count was ended at 1400 MST due to high winds.

Raptor Observations:
Migrants were moving in the morning with 13 Turkey Vultures over Green Mountain, a few Broad-winged Hawks, and a juvenile Peregrine Falcon that came overhead to name a few. Around 1100 MST migration came to a halt. We saw a number of non-migratory birds that seemed like they were maybe trying to move N but were unsuccessful due to the winds. One adult Bald Eagle, one male Northern Harrier, one Cooper's Hawk, and the usual Red-tailed Hawks and Turkey Vultures were seen. The CH was seen with prey in its talons once.

Non-raptor Observations:
White-throated Swift 20, American White Pelican 7, Say's Phoebe 1, Black-billed Magpie 2, Common Raven 2, Tree Swallow 15, Cliff Swallow 3, American Robin 1, Spotted Towhee 1

Predictions:
Snow is predicted to fall for much of the day tomorrow. We will try to count through the snow as long as we have decent visibility. Prepare for cold and snowy conditions if you plan on visiting the site tomorrow!


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]




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, American White Pelican, and Dusky Grouse. 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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