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Tony Leukering

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Everything posted by Tony Leukering

  1. It's February -- it's a female. Head and neck noticeably gray and contrasting strongly to fairly strongly with color of chest -- American.
  2. Nowhere near enough red on the head to even consider Red-breasted genes. Definitely a male, as the red of the throat hides much of the black throat frame.
  3. Most people hate it when you get their names wrong. There is no 'l' in "Abert's Towhee."
  4. Blackburnian has one sure-fire field character -- the pale braces on the back, at least one of which would have been visible in some of the photos.
  5. Wingtips extend to tail tip = Peregrine Wingtips fall notably short of tail tip = Merlin
  6. And note that the first part of the English name of Spizella pallida is a compound adjective, thus is hyphenated, with the letter immediately following the hyphen being in lower case. In case like "Great Black-backed Gull," both "Great" and "Black-backed" are modifying "Gull" independently, whereas, "Black" and "backed" are not.
  7. Actually, "immature" is still a valid age for both buteos and accipiters, but only during the transition between juvenile and adult, thus with a mix of feather generations and pattern.
  8. Note that the spelling is "juvenile." In the past, ornithologists often differentiated between the plumage ("juvenal") and the bird ("juvenile"), but that distinction has, unfortunately IMO, gone by the wayside.
  9. In Cook County: Song Sparrow Fox Sparrow
  10. This bird is SO on the drab end of plumage variation in the species, that it's probably an immature female.
  11. In October, there are no drab Rusty Blackbirds.
  12. https://cobirds.org/CFO/ColoradoBirds/InTheScope/82.pdf
  13. I'm just curious why you didn't rule out Dark-eyed Junco on bill shape and bill color.
  14. Juvenile Chippings have entirely streaked heads. Immature Chipping Sparrows can have head patterns like this, but the wing pattern suggests to me that it is an adult.
  15. Note the bit of white on the inner web of each outermost rectrix (tail feather), which rules out Orange-crowned and almost all other warbler species not in the genus Setophaga.
  16. https://cobirds.org/CFO/ColoradoBirds/InTheScope/82.pdf
  17. The angle of the pix on the bill does not provide confidence, but I'd vote for Ruby-throated if I really had to. "Ruby-throated/Black-chinned" works fine for me.
  18. Beware of "buffy malar stripes." https://macaulaylibrary.org/asset/176187601#_ga=2.250970177.694853548.1572063078-334541348.1399337695 https://macaulaylibrary.org/asset/175764541#_ga=2.250970177.694853548.1572063078-334541348.1399337695 https://macaulaylibrary.org/asset/173846851#_ga=2.250970177.694853548.1572063078-334541348.1399337695 Juvenile Songs usually/often have buff malar stripes and that color can be present in immature Songs. The thin, well-defined streaks on a buff background is a more-reliable feature.
  19. The tail is entirely dark. The bill is not. Herring.
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