Date: 3/23/21 12:42 pm
From: <reports...>
Subject: [cobirds] Dinosaur Ridge - Denver Field Ornithologists (23 Mar 2021) 7 Raptors
Dinosaur Ridge - Denver Field Ornithologists
Colorado, USA
Daily Raptor Counts: Mar 23, 2021

Species Day's Count Month Total Season Total
------------------ ----------- -------------- --------------
Black Vulture 0 0 0
Turkey Vulture 0 0 0
Osprey 0 0 0
Bald Eagle 0 10 10
Northern Harrier 0 0 0
Sharp-shinned Hawk 0 5 5
Cooper's Hawk 0 2 2
Northern Goshawk 0 3 3
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 0 0
Red-tailed Hawk 7 93 93
Rough-legged Hawk 0 1 1
Swainson's Hawk 0 0 0
Ferruginous Hawk 0 6 6
Golden Eagle 0 3 3
American Kestrel 0 1 1
Merlin 0 2 2
Peregrine Falcon 0 1 1
Prairie Falcon 0 0 0
Mississippi Kite 0 0 0
Unknown Accipiter 0 0 0
Unknown Buteo 0 7 7
Unknown Falcon 0 2 2
Unknown Eagle 0 0 0
Unknown Raptor 0 3 3

Total: 7 139 139

Observation start time: 09:00:00
Observation end time: 11:00:00
Total observation time: 2 hours

Official Counter: Carol Cwiklinski

Observers: Janet Peters

We saw a few people on the trail. Matthews Winters park was closed today.
The trail was half snow and half mud. Hiking the trail wasn’t too bad
with proper equipment, but I expect there will be more slippery mud as the
snow melts.

It was nice weather when we arrived but gradually storms developed. At
times, the top of the observation ridge was blue sky sunshine, while all
around us it was cloudy, dark and snowing. Finally the north wind started
blowing snow in our direction which ended the count.

Raptor Observations:
Raptor movement was scattered today along the western ridge and green
mountain. All the birds were distant and the light made it difficult to
pick out their details. Thermals were not well developed so the birds
stayed low.

Non-raptor Observations:
The elk were roaming in the usual spot. Common Ravens were active and a few
passerines but it was generally quiet.

Continued unsettled weather
Report submitted by DAVID HILL ()
Dinosaur Ridge - Denver Field Ornithologists information may be found at:

More site information at

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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