Spotted a yellow-throated warbler at a backyard feeder near North Palo Park, Boulder. 3 experienced birders saw the bird clearly with binoculars but didn't get a photo.
On Tue, Dec 19, 2023, 1:20 AM <[email protected]> wrote: > [email protected] > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!forum/cobirds/topics> > Google > Groups > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email/#!overview> > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email/#!overview> > Topic digest > View all topics > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!forum/cobirds/topics> > > - December Winter Raptor Survey, and sighting of a mystery buteo > <#m_3057518593578829848_group_thread_0> - 1 Update > - Fountain Creek CBC Dec. 14th Results > <#m_3057518593578829848_group_thread_1> - 1 Update > - Jaeger and loon continue <#m_3057518593578829848_group_thread_2> - 1 > Update > - Register for Rawhide CBC- NOW! > <#m_3057518593578829848_group_thread_3> - 1 Update > > December Winter Raptor Survey, and sighting of a mystery buteo > <http://groups.google.com/group/cobirds/t/3839fad18a30078e?utm_source=digest&utm_medium=email> > "[email protected]" <[email protected]>: Dec 18 08:06PM -0800 > > December Winter Raptor Survey of Rocky Mountain Arsenal NWR and DIA Raptor > Alley, with sighting of a mystery buteo > > This is our 2nd season doing volunteer Winter Raptor Surveys (WRS) for the > Hawk Migration Association of North America (HMANA) since moving to Denver > in July 2022. Prior to moving we did 4 WRS in New York State in the Hudson > Valley area since 2016. > > Last winter season we did 3 surveys here – 1 in Denver and 2 in Boulder in > December 2022, and January and February 2023 for each route, following it > exactly, and roughly in the same week each month. > > This year we added another WRS in the area between Bennett and Jackson > Lake > SP. We did that route a week ago with nothing special to report. It may > improve as winter progresses. > > Yesterday we completed the Rocky Mountain Arsenal to Barr Lake, and west > of > Denver International Airport route for December 2023. > > We saw and identified 78 Raptors, including > > Ferruginous Hawk 5, all adult > > Prairie Falcon 1, which attacked a Red-tailed Hawk as well > as a Northern Harrier > > Bald Eagle 25 > > Northern Harrier 10 > > American Kestrel 5 > > Red-tailed Hawk 25, including 2 dark morph RT on Piccadilly Road > at Barr Lake, one perched and both in flight together. Spectacular. > > In addition we had a mystery buteo at 1st Creek at DEN Open Space perched > in a tree next to Peña Boulevard at 10:15 AM. When we finished our survey > and on the way back we could still see it (presumably the same buteo) at > the same location at 4:30 PM while driving south on Peña Boulevard. > > Our eBird checklist for that location with images is: > > https://ebird.org/checklist/S156663182 > > My notes written during the observation were: The tail was reddish with > multiple equal width bands, no sub-terminal band, with more reddish > distally than proximally, as well the left side of the tail was slightly > more red than the right side of the tail which was less red. There was a > thin eyeline on an otherwise white head with a black blob in the malar > area, no belly band but a few speckles in the flank area, white scapulars > and coverts. > > > > Liza fancied a Krider's Hawk looking at the Raptor ID app. Looking at > Brian Wheeler's Raptors of Western North America at the time, I felt it > could be a juvenile light morph Harlan's Hawk, except today reading more > about it in his Birds of Prey of the East and looking at the pictures, the > back is not stark black and white as his images show. > > I sent the images to the WRS coordinator for expert opinions. So far one > opinion is that it could be a Krider’s Hawk or an intergrade between > Krider’s and an Eastern borealis Red-tailed Hawk. > > Any learned expert opinions with detailed reasons for your ID would be > most > welcome. > > I have to admit that neither of us have ever seen any of these possible > species! Our ID speculations are book/image-based only. > > > You can see what we found on our previous WRSs along the same and other > routes at > > https://wrs.hmana.org/public_html/index.php as well as the 1 other route > developed in the past winter season in Colorado – the Nunn Raptor Alley > route conducted by Robert Beauchamp. Go to the website to the left sidebar > and click on Survey Map and enlarge it to Colorado, you can click on > individual surveys and using the drop-down menu, find previous survey > results. > > Anyone can develop their own survey route. It is open to all. You can get > more information at: > > https://www.hmana.org/winter-raptor-survey/ > > If you like raptors and know of an area with raptors you can develop your > own route, as long as it doesn’t overlap an established one. Just follow > the guidelines on the website. If you want any questions answered you can > email the WRS coordinator Janice Sweet. I can also be of help if you want > someone local. > > Ajit & Liza Antony > > Central Park, CO (which used to be called Stapleton) > Back to top <#m_3057518593578829848_digest_top> > Fountain Creek CBC Dec. 14th Results > <http://groups.google.com/group/cobirds/t/8cafc67a327cca60?utm_source=digest&utm_medium=email> > Diana Beatty <[email protected]>: Dec 18 02:33PM -0700 > > The Fountain Creek CBC in El Paso County took place on December 14th, 2023 > - it was a successful count even in the face of some challenging driving > and viewing conditions. We had snow, very dense fog, and some difficult or > impassable roads that affected some effort and finding. > > We had 5306 birds and 81 species plus 4 count week species. While our > long-term average is higher, out of the past four years, we had the 2nd > highest number of species (we had 90 in 2020), and the 2nd lowest number of > birds (we had 4806 in 2021 when we had 70mph winds affecting effort and > findability of birds). > > Some interesting count observations: > 1. Greater White-Fronted Goose count week bird on 12/12 in FCRP. > 2. Blue-winged Teal reported by our team in FCRP on count day is a new > count species. They noted it had been reported at the park a week or two > earlier. > 3. Yellow-throated Warbler in FCRP was found on count day and numerous > times in count week, new species for the count. > 4. Tennessee Warbler in FCRP was found during count week only by multiple > birders, new to the count. > 5. Winter Wren was found in FCRP during count week. > 6. One area had a 'strange' Spotted/Eastern Towhee - maybe a hybrid. > 7. New High Count for Mourning Doves at 58 birds, more than the number of > Eurasian Collared Doves! > 8. New High Count for American Pipits at 24, mostly in southern FCRP > (Fountain Creek Regional Park) along the creek. > 9. New High Count for Pine Siskins at 128, mostly in Clear Spring Ranch. > 10. New High Count for Western Meadowlark at 260, the biggest groups on > private property. > > 11. Some birds we found that we don't always get or are more rare (but not > new) - Bewick's Wren (1), Marsh Wren (2), Lapland Longspur (1), Canyon > Towhee (2), Swamp Sparrow (11), Scaled Quail (7), Harlan's Hawk (2), > Prairie Falcon (1), Ladder-backed Woodpecker (1), Lewis's Woodpecker (2), > Curve-billed Thrasher (4), Brown-headed Cowbird (1), Great-tailed Grackle > (2), Eastern Bluebird (9), Intergrade Northern Flicker (1). > > 12. Our other count-week-only bird was Wood Duck - not rare, but hiding > well on count day. > > > Diana Beatty > Fountain Creek CBC coordinator > El Paso County > Back to top <#m_3057518593578829848_digest_top> > Jaeger and loon continue > <http://groups.google.com/group/cobirds/t/96893f762bf08ad0?utm_source=digest&utm_medium=email> > Brandon <[email protected]>: Dec 18 09:21AM -0700 > > Both the Pomarine Jaeger and Yellow-billed Loon are still present this > morning at Pueblo Reservoir. Middle to East side of lake is the best > chance. > > Brandon K. Percival > Pueblo West, CO > Back to top <#m_3057518593578829848_digest_top> > Register for Rawhide CBC- NOW! > <http://groups.google.com/group/cobirds/t/1695704f89da8932?utm_source=digest&utm_medium=email> > Douglas Kibbe <[email protected]>: Dec 18 03:40PM > > Just a reminder for those planning to attend the Rawhide Power Station CBC > on January 2: > I must submit a form with your names this week if you hope to enter the > power station property and view the waterfowl concentrations behind the > power plant. I currently have about a half dozen names. Thanks to those who > responded promptly to my earlier notice. Are there others who plan to > attend? > Anyone planning to attend the Rawhide CBC on Tuesday January 2, 2024 must > let me know ASAP if they want to access the power station property. > I have to submit a form requesting access permission, so if you hope to > see the large concentration of waterfowl in the cooling pond let me know > now! > As in past years, we assemble at the power station reservoir overlook > parking lot at 8 AM to break into teams. Compilation will be in Wellington > at 1PM (location TBD). > Doug Kibbe Compiler > 303-910-9476 > [email protected] > Back to top <#m_3057518593578829848_digest_top> > You received this digest because you're subscribed to updates for this > group. You can change your settings on the group membership page > <https://groups.google.com/forum/?utm_source=digest&utm_medium=email#!forum/cobirds/join> > . > To unsubscribe from this group and stop receiving emails from it send an > email to [email protected]. > -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. 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