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Tony Leukering

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Everything posted by Tony Leukering

  1. You are correct on your IDs. Notice how much smaller the VG is than the Tree and note the white bits on the rump.
  2. Juvenile -- and adult -- Cliff Swallows have dark smudges on the under-tail coverts, a feature that this bird lacks. Additionally, juvenile Cliff Swallows do not usually have rufous foreheads. https://cobirds.org/Publications/ColoradoBirds/InTheScope/19.pdf
  3. Great Black-backed -- What little we can see of the tail would be entirely dark on a juv LessBack. Additionally, Lessers are darker-headed and have less white spangling. https://macaulaylibrary.org/asset/67352051#_ga=2.55629803.1717137327.1596644377-1184313056.1549327880
  4. BASA is, far and away, the most abundant shorebird in eastern Colorado in fall.
  5. Cassin's Kingbird -- the head and chest are too dark and the white malar area is too limited in expanse and sharply curtailed at the back of the eye. The distinction is usually straightforward. Western Cassin's
  6. Note the extensively black-centered, white-fringed alternate-plumage scapulars, which is a distinctive feature of adult BASAs in Colorado.
  7. No pipits, of any kind, in TX at this time of year. I see a pink hind toe and a dark pinkish stretch of foot, but I'm not sure that the color can be trusted. This beast is perplexing, as anything with that much orange of that tone on the underparts shouldn't have the rest of the bird looking as it does. My first thought, too, was a titmouse, but if so, it's got some serious color problems. All nuthatches have strongly patterned tails, so the genus is ruled out here. Eastern Bluebird might have been an option if it just weren't so gray. I'm bamboozled, and I'm usually pretty good with these sorts of quizzes.
  8. It's molting out of juv plumage and is a Pine. Northern Parula has a nearly unmarked yellow mandible. Here's a Pine in a similar state of molt.
  9. Possibly (the species is certainly on the move), but the pix don't show some of the most useful characters at all well.
  10. The first is certainly of two different Red-bellied calls and all that I can make out in the second is Blue Jay.
  11. This is very important. Additionally, Lincoln's are svelte birds, whereas Songs are big bruisers. They really don't look like each other, just like one would not confuse a jockey with a center on a professional basketball team.
  12. There is no plumage of Common Tern with so little black on the head. The gull is a Lesser Black-backed that looks like it's begun it's second prebasic molt, so is a bit over a year old.
  13. Not much else it could be with a glob black belly feathers.
  14. The person after whom the pre-split species was named has a double 'l' at the end of his name.
  15. That big patch of white on the wing rules out everything else.
  16. yellowlegs are sandpipers, which are in the family Scolopacidae, a family that includes North America's smallest AND largest shorebird species.
  17. Note the white central crown stripe and the short tail and the wide, flaring lateral throat stripes and the strong and white wing bars and the neat (not blobby) streaking below
  18. 1-3 -- Lesser Yellowlegs 5-6 -- Solitary Sandpiper (juvenile of cinnamomea subspecies) 7 -- Lesser Yellowlegs -- on this bird, the tail is reasonably visible, and the color and pattern of that tail rule out Solly Sand
  19. They're perched right next to each other. The wing bars are buffy, rather than white. Their plumage is nearly pristine.
  20. Mountain and, probably, Red-breasted for the first two. If you're an Easterner, then Red-breasted is probably confirmed, as the Rockies White-breasted does not say 'yank.' I'm still waiting for the AOS to split White-breasted Nuthatch into three species. https://cobirds.org/Publications/ColoradoBirds/InTheScope/53.pdf
  21. Some juv Eastern Wood-Pewees have extensively dark mandibles, though I don't know that I've ever seen one with an entirely black mandible. For clarity's sake: Mandible -- lower jaw; maxilla -- upper jaw.
  22. Yes. The creamy gular patch is distinctive of the species.
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