Date: 4/5/21 4:08 pm
From: <reports...>
Subject: [cobirds] Dinosaur Ridge - Denver Field Ornithologists (05 Apr 2021) 16 Raptors
Dinosaur Ridge - Denver Field Ornithologists
Colorado, USA
Daily Raptor Counts: Apr 05, 2021

Species Day's Count Month Total Season Total
------------------ ----------- -------------- --------------
Black Vulture 0 0 0
Turkey Vulture 3 11 14
Osprey 0 0 0
Bald Eagle 0 2 15
Northern Harrier 0 0 0
Sharp-shinned Hawk 1 6 20
Cooper's Hawk 4 13 24
Northern Goshawk 0 1 5
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 1 1
Red-tailed Hawk 8 36 229
Rough-legged Hawk 0 0 1
Swainson's Hawk 0 0 0
Ferruginous Hawk 0 0 6
Golden Eagle 0 0 6
American Kestrel 0 9 11
Merlin 0 0 4
Peregrine Falcon 0 0 4
Prairie Falcon 0 0 1
Mississippi Kite 0 0 0
Unknown Accipiter 0 0 1
Unknown Buteo 0 2 11
Unknown Falcon 0 0 2
Unknown Eagle 0 0 0
Unknown Raptor 0 0 3

Total: 16 81 358

Observation start time: 09:00:00
Observation end time: 14:00:00
Total observation time: 5 hours

Official Counter: Karen Fernandez

Observers: Jeff Birek, Mike Fernandez, VIcky Hamilton

19 visitors came to the platform. Jeff Birek, former director of Hawkwatch
for the Bird Conservancy of the Rockies, shared his expertise for most of
the day. New volunteer Vicky Hamilton was very helpful with spotting.

Warm and windy until about 2:00, when the wind died and bit of sun shone
through the cloud cover.

Raptor Observations:
The Turkey Vultures were seen from considerable distance, while the
accipiters were low and close to the ridge. Resident Red Tailed Hawks were
observed throughout the day both east and west of the ridge. A resident
juvenile Golden Eagle was seen out over the Chatfield area. A probable
Northern Goshawk flew south from the ridge. Also seen was a Prairie

Non-raptor Observations:
Also observed were Black Billed Magpie, Black Capped Chickadee, Common
Raven, Rock Pigeon, Woodhouse Scrub Jay, Townsends Solitaire, Violet-Green
Swallow, Bushtit, Mountain Chickadee, White-Throated Swift, Spotted Towhee,
Dark-Eyed Junco, and Northern Flicker

Could be a good day early, before the rain.
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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