Date: 3/28/17 3:05 pm
From: <reports...>
Subject: [cobirds] Dinosaur Ridge (28 Mar 2017) Raptors
Dinosaur Ridge
Colorado, USA
Daily Raptor Counts: Mar 28, 2017

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 8 8
Northern Harrier 0 0 0
Sharp-shinned Hawk 0 7 7
Cooper's Hawk 0 5 5
Northern Goshawk 0 0 0
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 0 0
Red-tailed Hawk 0 161 161
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 0 0
Ferruginous Hawk 0 4 4
Golden Eagle 0 3 3
American Kestrel 0 12 12
Merlin 0 0 0
Peregrine Falcon 0 2 2
Prairie Falcon 0 1 1
Mississippi Kite 0 0 0
Unknown Accipiter 0 4 4
Unknown Buteo 0 13 13
Unknown Falcon 0 3 3
Unknown Eagle 0 0 0
Unknown Raptor 0 6 6

Total: 0 229 229

Observation start time: 09:30:00
Observation end time: 10:30:00
Total observation time: 1 hours

Official Counter: Gary Rossmiller


2 birders, Barrett and Mary Hargreaves, stopped by at the top of the hour,
they had never been up there before. I showed them our cheat sheet from They mentioned bird watching along the Platte River in
Littleton. The mentioned seeing a Kestrel perched on the wires on the way

Overcast, wind blown moisture. Sun found a hole in the clouds around the
top of the hour for 20 minutes. Wind out of the north at 3-4 bft, a few
higher gusts. Clouds eventually cleared over the ridge to the west but Mt.
Morrison's summit was never seen. Could almost see the horizons. Storm
seemed to be heavier to the north.

Raptor Observations:
Parked on Rooney Road, didn't expect to see the ridge through the clouds.
Got out and immediately saw a local RT near the ridge. Hiked up to the
platform. Closer to 10:30 2 local RT's worked the fields on the east side.
Once back at the parking lot a 3rd RT was visible.
Otherwise no migrating raptors.

Non-raptor Observations:
Over 50 elk on Bare Slope. Small birds fairly active; Canyon Wren heard,
Meadowlark, Magpie, Robin, Scrub Jay, Spotted Towhee disappeared into the
shrubs, and a flock of Mountain Bluebirds at the saddle to the south.

Another wet day but maybe migration?
Report submitted by Bird Conservancy of the Rockies (<jeff.birek...>)
Dinosaur Ridge information may be found 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 are always welcome.
The hawkwatch is generally staffed by volunteers from Bird Conservancy of
the Rockies 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 south side of lot to 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

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