Unusual Kestrel in Adams County

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Susan Rosine

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Jan 12, 2017, 7:19:37 PM1/12/17
to Colorado Birds
I was on a little road near Thornton, and came across an American Kestrel dining on roadkill. He would fly to a tree on the side of the road when a car would come along, and then go back for more.
The unusual thing was, he had no black speckles except a few on the sides, and lots of orange on chest and belly. Is he a subspecies?
Susan Rosine
Thornton
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Jim Nelson

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Jan 12, 2017, 7:27:16 PM1/12/17
to Colorado Birds
The extent of black spotting on the underparts may be age related.  This is from the species account in Birds of North America online -- Considerable disagreement on how much of the variability in kestrel plumage is age-related. Bent (  ) suggested that males become less barred dorsally, less spotted ventrally, with a more rufous tail through successive molts; Parkes (  ) presented contrary evidence.”
 
Jim Nelson
Bethesda, Maryland 
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Susan Rosine

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Jan 12, 2017, 10:59:39 PM1/12/17
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Interesting; thank you so much!
Susan R.
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