Date: 4/17/26 8:04 pm
From: <reports...>
Subject: [cobirds] Dinosaur Ridge - Denver Field Ornithologists (17 Apr 2026) 4 Raptors
Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA
Daily Raptor Counts: Apr 17, 2026
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Species Day's Count Month Total Season Total
------------------ ----------- -------------- --------------
Black Vulture 0 0 0
Turkey Vulture 0 106 133
Osprey 0 20 26
Bald Eagle 0 7 20
Northern Harrier 1 18 30
Sharp-shinned Hawk 0 61 82
Cooper's Hawk 0 109 161
American Goshawk 0 0 1
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 6 6
Red-tailed Hawk 0 142 390
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 7 7
Ferruginous Hawk 0 5 14
Golden Eagle 0 1 8
American Kestrel 3 271 410
Merlin 0 2 5
Peregrine Falcon 0 1 3
Prairie Falcon 0 2 4
Mississippi Kite 0 0 0
Unknown Accipitrine 0 8 14
Unknown Buteo 0 1 4
Unknown Falcon 0 2 3
Unknown Eagle 0 0 0
Unknown Raptor 0 2 3

Total: 4 771 1324
----------------------------------------------------------------------

Observation start time: 09:00:00
Observation end time: 17:00:00
Total observation time: 4 hours

Official Counter: Soren Zappia, Soren Zappia

Observers:

Visitors:
3 visitors. We had a family of birders from Kentucky visit the ridge in the
afternoon - they appreciated a Black-billed Magpie that had landed close
by.


Weather:
The snow hadn't started when the count began, but it was visible to the
north and east. Skies were overcast and winds were light to moderate from
the east. Snow began around 9:20 MST. Visibility at first was good but
dropped to near 2 km by the end of the hour, and both the west ridges and
green mountain disappeared into the snow. The wind intensified a bit, and
visibility continued to drop to less than 0.5 km until the count was
suspended due to low visibility.

The count resumed at 15:00 MST, and soon after a very light snow fell for
around 30 minutes. Fog in the east and south limited view of the west
ridge, and Mt Morrison disappeared into the fog, but Green Mountain was
clear. The sky was mostly cloudy with a few holes in the cloud cover to the
north and east developing in the final hour. Winds remained light from the
east.

Raptor Observations:
Despite the snowy day, we had a few migrants in the first hour. As the snow
was starting, a Northern Harrier flew low on the west just above the
ridgeline, and an American Kestrel passed by close on the east. At the end
of the first hour when snow was intensifying, a pair of AKs flew by low in
the valley. No migrants were seen in the following hour before the count
was suspended.

In the afternoon, no migrants were observed, although we spotted a local
Swainson's Hawk and young Bald Eagle.

Mountain Bluebirds flew south past the ridge soon after the snow began, and
flocks of American Robins and Mountain Bluebirds were flitting about the
ridge in the morning. A Townsend's Solitaire was observed in the afternoon.

Non-raptor Observations:
Broad-tailed Hummingbird 1, Mourning Dove 1, Double-crested Cormorant 1,
Northern Flicker 1, Black-billed Magpie 2, American Crow 1, Common Raven 1,
Mountain Bluebird 21, Townsend's Solitaire 1, American Robin 18, Spotted
Towhee 1, Western Meadowlark 1

Predictions:
Tomorrow is our Raptorthon celebration, and our team will be attempting to
find as many species as possible on the ridge and close nearby. We hope you
can join us!

Read more here:
https://www.hawkmigration.org/product/the-mile-high-raptors/

It should be a nice and cool day with temperatures in the mid 30s to low
50s F. Sunny skies are predicted with moderate to light WNW winds shifting
to light NE in the afternoon. Expect muddy trails from today's snow.
========================================================================
Report submitted by Official Counter of the day shown above (<dinoridgehw...>)
Dinosaur Ridge - Denver Field Ornithologists information may be found at:
www.dinosaurridgehawkwatch.org


More site information at hawkcount.org: https://hawkcount.org/siteinfo.php?rsite=123
Count data submitted via Trektellen.org - Project info at:
https://trektellen.org/count/view/4515/20260417

Site Description:
Dinosaur Ridge is the only regularly staffed hawk watch in Colorado and is
the best place in the world to see migrating Ferruginous Hawks. Hawk
watchers may see 17 species of migrating raptors; and it is an excellent
site to see rare dark morph buteos including Broad-winged hawk, Swainson's
hawk, Ferruginous hawk, Rough-legged hawk and Red-tailed Hawk. Other
raptors we see include Golden and Bald Eagles, Northern harrier, Osprey,
Peregrine Falcons, Prairie Falcons, Cooper's and Sharp-shinned Hawks,
American Kestrels, Merlin, and Turkey Vultures. American Goshawk is
uncommon but also counted each season. Non-raptor species include Rock
Wren, Bushtit, Western Bluebird, Sandhill Crane, White-throated Swift, and
American White Pelican. Birders of any skill level are always welcome. The
hawk watch at Dinosaur Ridge is staffed by Hawk Counter(s) and volunteers
from March through early 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 hawk watch signs
from the southwest end of the parking lot to the hawk watch 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, and walk to the flat area at the crest of the ridge.
(Distance: 0.56 miles, Elevation gain: 259 feet)


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