Monday 26 October 2020

[cobirds] Boulder Purple Finches

A female and 2 male Purple Finches came by our feeders north of Boulder this afternoon. The female was around for a while, so I was able to study it. It seemed somewhat in between the e and w varieties pictured in Sibley. Crest; bill not as sharply conical as a Cassins; whitish underparts with dark broad streaking; primary projection longish but not specially long; weak face pattern; narrow white rim under eye, rump light brown with some vague mottling. While I was working on such details, two males suddenly appeared for about half a minute, and didn't return.
Not a bad day--a Prairie Falcon zoomed by in the morning for a bonus.

Alan Bell, Boulder

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