Date: 3/8/17 2:58 pm
From: <reports...>
Subject: [cobirds] Dinosaur Ridge (08 Mar 2017) 16 Raptors
Dinosaur Ridge
Colorado, USA
Daily Raptor Counts: Mar 08, 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 6 6
Northern Harrier 0 0 0
Sharp-shinned Hawk 0 0 0
Cooper's Hawk 0 0 0
Northern Goshawk 0 0 0
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 0 0
Red-tailed Hawk 14 28 28
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 0 0
Ferruginous Hawk 0 0 0
Golden Eagle 1 1 1
American Kestrel 0 0 0
Merlin 0 0 0
Peregrine Falcon 0 1 1
Prairie Falcon 0 0 0
Mississippi Kite 0 0 0
Unknown Accipiter 0 0 0
Unknown Buteo 1 3 3
Unknown Falcon 0 0 0
Unknown Eagle 0 0 0
Unknown Raptor 0 0 0

Total: 16 39 39

Observation start time: 08:45:00
Observation end time: 14:00:00
Total observation time: 5.25 hours

Official Counter: Roger Rouch



A mild partly cloudy day with temps from 35 to 51 F. Calmer than the gale
force type winds of the past days, but still a steady wind mostly from the
NW around 3 and 4 Bft. through the day.

Raptor Observations:
Possibly a migration catch-up after the recent high winds, with several
migrating Red-tailed plus an adult American Golden Eagle. The time between
10:30 and 11:30 was especially active for both migrating and local
Red-tailed Hawks, with some locals travelling well past I-70 either as
escorts for migrants or on their own, only to return south. The migration
route was almost exclusively along the valley between Mt. Morrison and the
Ridge at various elevations including eye level. Speculation was that this
provided some wind protection or other favorable flight in the NW winds.

Non-raptor Observations:
Also seen were Western Scrub Jay, Black-capped Chickadee, Mountain
Chickadee, Common Raven, American Robin, Townsend's Solitaire.

Possibly similar to today?
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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