Thursday, 22 March 2012

[cobirds] HSR: Dinosaur Ridge (21 Mar 2012) 6 Raptors

Dinosaur Ridge
Colorado, USA

Daily Raptor Counts: Mar 21, 2012
SpeciesDay's CountMonth TotalSeason Total
Black Vulture000
Turkey Vulture000
Osprey000
Bald Eagle066
Northern Harrier000
Sharp-shinned Hawk111
Cooper's Hawk066
Northern Goshawk000
Red-shouldered Hawk000
Broad-winged Hawk000
Red-tailed Hawk45858
Rough-legged Hawk011
Swainson's Hawk011
Ferruginous Hawk022
Golden Eagle033
American Kestrel166
Merlin011
Peregrine Falcon011
Prairie Falcon055
Mississippi Kite000
Unknown Accipiter022
Unknown Buteo022
Unknown Falcon000
Unknown Eagle000
Unknown Raptor011
Total:69696


Observation start time: 08:00:00
Observation end time: 15:00:00
Total observation time: 7 hours
Official CounterJennifer Hyypio
Observers: Janet Shin, LeAnn Joswick



Visitors:
Mark was visiting from Montana and stopped to talk birds. 4 hikers came to the site for the view. 3 bikers and a couple joggers passed on the trail.

Weather:
Cool morning temperatures rising to 56 F by end of watch. Clear skies becoming cloudy with high, thin, patchy cloud coverage in the afternoon. Good visibility. Winds increased throughout the day from N-NE.

Raptor Observations:
3 Red-tailed hawks flew over the ridge or just to the east side of the ridge. Great views of the hawks "stilling" as they hunted moving north. The other Red-tailed hawk took a steady course north over the west ridge. The resident male Kestrel chased a migrating male Kestrel up the west side of the ridge. The Sharp-shinned hawk came fast at eye level over the east side of the ridge. We did not observe the resident Red-tailed hawks as we did the previous week.

Non-raptor Observations:
Other birds: Townsend's Solitaire, Black-capped Chickadee, Mountain Chickadee, Junco, Scrub Jay, Robin, Magpie, Western Meadowlark and Raven. Small groups of deer in various numbers appeared on the flats at the bottom of the east side of the ridge.


Report submitted by Rocky Mountain Bird Observatory (jeff.birek@rmbo.org)
Dinosaur Ridge information may be found at: http://www.rmbo.org/

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 the Rocky Mountain Bird
Observatory from about 9 AM to around 4 PM from the first week of March to the
first week of 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 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 ridge.



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