Sunday, 1 March 2020

[cobirds] Dinosaur Ridge - Bird Conservancy of the Rockies (01 Mar 2020) 7 Raptors

Dinosaur Ridge - Bird Conservancy of the Rockies
Colorado, USA

Daily Raptor Counts: Mar 01, 2020
SpeciesDay's CountMonth TotalSeason Total
Black Vulture000
Turkey Vulture000
Osprey000
Bald Eagle000
Northern Harrier000
Sharp-shinned Hawk000
Cooper's Hawk000
Northern Goshawk000
Red-shouldered Hawk000
Broad-winged Hawk000
Red-tailed Hawk666
Rough-legged Hawk000
Swainson's Hawk000
Ferruginous Hawk000
Golden Eagle111
American Kestrel000
Merlin000
Peregrine Falcon000
Prairie Falcon000
Mississippi Kite000
Unknown Accipiter000
Unknown Buteo000
Unknown Falcon000
Unknown Eagle000
Unknown Raptor000
Total:777


Observation start time: 10:00:00
Observation end time: 13:30:00
Total observation time: 3.5 hours
Official Counter
Observers: Spencer England



Visitors:
I had 10 visitors total stop and ask what I was looking for and who I was with. There were a lot of runners and hikers on the trail today. There were a few bikers as well

Weather:
High of 33 F, High of 38 F from the time I was present with winds consistently around 5-8 MPH blowing north. Mostly cloudy throughout the day but between 11-12, the sun did come out. The temperature did warm up during that hour, and that's when I had the most bird activity. No precipitation although snow was predicted in the forecast for later in the day.

Raptor Observations:
10-11 AM Three Red Tail Hawk‘s within a span of about five minutes of each other going over the power line area. I was looking west. The approximate times I saw each RTHA was 10:35, 10:40, 10:45. I wasn't seeing the same bird 3 times as I watched each one fly above and below the ridge line until I couldn't see them anymore. I lost them as they went over to the mountains to the right of Lookout Mt. Towers. It was cloudy further north. 11:55 I spotted three red tail hawks soaring in the sky together beside the towers on Mt. Morrison. I got my scope on them quickly and watched all 3 catch wind to get very high in the sky and then continue north. I'm positive these were not the same 3 RTHA from before as this group was flying together. I've never really seen 3 RTHAs fly together like this before. I've seen soaring in the sky for a while, but these 3 were on the move north together. I continued to watch them until I lost them over the ridge above Lookout Mt. Towers. 12:20 Spotted 1 Golden Eagle adult looking flying over I70. I got my scope on it. I could tell even from the Hawk Watch Spot that it was much larger than a Buteo. I got my scope on it and I could tell it was a GOEA. Extremely powerful wing flaps. It was riding the ridge line headed north. Appeared to be on a mission. There were 2 other Red Tailed Hawks that patrolled the area and stuck around for about 25 minutes on both sides of the ridge at around 12:45 PM. One of them appeared to be a dark morph which I hadn't seen all day or really in a while in CO. Recap: 6 Red-Tailed Hawks 1 Golden Eagle

Non-raptor Observations:
2 Scrub Jays 3 Townsend's Solitaires 2 Black Capped Chickadees 3 Ravens 2 Magpies 5 Canada Geese (Flyover) 1 American Crow

Predictions:
It's supposed to snow all night (3/1) and snow into tomorrow morning (3/2). The trail this morning was already very muddy.


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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[cobirds] Warren Lake 3/1

Upon checking Warren Lake today 1-2:30 pm I found an adult Glaucous-winged Gull, presumably the same bird Nick Komar had this morning on another lake. The 1st cycle Glaucous Gull was present at least at the beginning of my stay, and the 1st cycle Great Black-backed Gull arrived around 2 but seemed to have disappeared shortly after. Among several 1st cycle Thayer's Gulls, one bird looked larger and good for a Cook Inlet (Herring x Glaucous-winged) but I did not see any young birds that looked like pure Glaucous-winged. I also tallied 7 Lesser Black-backed Gulls and 6 Thayer's Gulls.


Good birding,
David Tonnessen
Boulder, CO

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[cobirds] Wilson's Snipe - deKoevend Park (Arapahoe)

There was a Wilson's Snipe foraging this afternoon in the High Line Canal at deKoevend Park, below the bridge at the park's main entrance (by car). This is the first snipe I've found in the High Line Canal system, though they're usual at Marjorie Perry Nature Preserve (bordered by the canal in Greenwood Village) and at Willow Spring Open Space (nearby, but not on the canal). 

- Jared Del Rosso
Centennial, CO

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[cobirds] Sandhill Cranes over Walden Ponds, Boulder County

The Boulder Bird Club First Sunday birders saw a flock of about 38 Sandhill Cranes flying very high overhead (spotted by Lonny Frye) at about 9:30 this morning! They were headed north and so high we could not hear them.

Paula Hansley
Louisville

Sent from my iPhone

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[cobirds] Rosy-Finches Jackson County

COBirders,

Stopped at the Moose Visitor Center on Hwy. 14 in Jackson County on my way back from Steamboat. There was a flock of over 200 Rosy-Finches visiting the feeders there this morning. The predominant species was Gray-Crowned with a few Brown-capped plus several Hepburn's. I did not see any Black Rosy-Fiches but could not stay long so there may be some mixed in that I missed.

Sent from my iPhone
www.rkhphotography.net
Rachel Kolokoff Hopper
Ft. Collins

[cobirds] Adult GLAUCOUS-WINGED GULL, Fort Collins

An adult GLAUCOUS-WINGED GULL was at Robert Benson Lake between Fort Collins and Loveland this morning. It flew off towards the Larimer county landfill, which is closed this morning. Good place to look for this bird would be at Warren Lake in Fort Collins later today.

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[cobirds] Re: So does anyone else have favorite Avian signs of Spring?

...Replying to Mary Kay Waddington's post...

One of mine is the Sandhill Cranes staging in the San Luis Valley on their trek from New Mexico to their nesting grounds.  Their primordial calls take me back to my childhood in the Pleistocene.

Keep Smilin',
Kevin Corwin
west Centennial, Arapahoe County

Sent from my Remington Rand Typewriter via my Rotary Dial Wall Phone


In a message dated 3/1/2020 1:23:03 AM Mountain Standard Time, cobirds@googlegroups.com writes:

So does anyone else have favorite Avian signs of Spring?

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