Colorado, USA
| Daily Raptor Counts: Mar 28, 2019 | |||
| Species | Day's Count | Month Total | Season Total |
| Black Vulture | 0 | 0 | 0 |
| Turkey Vulture | 1 | 1 | 1 |
| Osprey | 0 | 0 | 0 |
| Bald Eagle | 0 | 12 | 12 |
| Northern Harrier | 1 | 1 | 1 |
| Sharp-shinned Hawk | 1 | 9 | 9 |
| Cooper's Hawk | 2 | 5 | 5 |
| Northern Goshawk | 0 | 0 | 0 |
| Red-shouldered Hawk | 0 | 0 | 0 |
| Broad-winged Hawk | 0 | 0 | 0 |
| Red-tailed Hawk | 10 | 93 | 93 |
| Rough-legged Hawk | 0 | 0 | 0 |
| Swainson's Hawk | 0 | 0 | 0 |
| Ferruginous Hawk | 0 | 4 | 4 |
| Golden Eagle | 0 | 3 | 3 |
| American Kestrel | 2 | 5 | 5 |
| Merlin | 0 | 0 | 0 |
| Peregrine Falcon | 0 | 0 | 0 |
| Prairie Falcon | 0 | 0 | 0 |
| Mississippi Kite | 0 | 0 | 0 |
| Unknown Accipiter | 1 | 3 | 3 |
| Unknown Buteo | 0 | 5 | 5 |
| Unknown Falcon | 0 | 0 | 0 |
| Unknown Eagle | 0 | 2 | 2 |
| Unknown Raptor | 0 | 2 | 2 |
| Total: | 18 | 145 | 145 |
| Observation start time: | 07:45:00 |
| Observation end time: | 13:30:00 |
| Total observation time: | 5.75 hours |
| Official Counter | Roger Rouch |
| Observers: | Jane Haddock |
Visitors:
Gerhard Langlois helped spot earlier in the day. Also, John Trinkle and family, including grandsons on spring break, helped spot in the morning and tolerated brief raptor explanations.
Weather:
Partly cloudy all day with a light atmospheric haze and moderate darker horizon haze. There was a breeze in the morning of about 1 Bft. from the SE becoming a brisk wind about 3 Bft. later. The afternoon wind shifted from the SE to N and back again several times in the afternoon (which seemed unusual). Temperatures rose from the high 40's to the mid-60's.
Raptor Observations:
Migration didn't pick up until later morning and continued through early/mid-afternoon. There was a pattern of observations that did not require binoculars close to the east ridge slope and over the Rooney valley above and below eye level. But also a mix over Green Mountain and the west ridge line with some at the limit of binoculars. Some of the more distant raptors faded into the distant haze or clouds before they could be counted or identified. The day's highlight was a migrating Northern Harrier (female or immature) a little above eye level and close to the east side of the ridge. Resident raptors were typical and included a couple or few Turkey Vultures, an unid. accipeter, unid. eagle and one or two active Red-tailed pairs.
Non-raptor Observations:
Also seen or heard included Rock Pigeon, Black-billed Magpie, Common Raven, American Crow, Canada Geese, Blue Jay, chickadee, Bushtit, and Woodhouse's Scrub-jay, Townsend's Solitaire, and American Robin. And possibly heard a hummingbird, but could have just been wishful thinking.
Predictions:
Maybe an interesting day judging from the last two, assuming the weather holds and it's not a rain out.
Report submitted by Matthew Smith (matt.smith@birdconservancy.org)
Dinosaur Ridge - Bird Conservancy of the Rockies information may be found at: http://www.birdconservancy.org/
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]
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 ridge.
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