Washington County Bird Highlights: 2007
Costa's Hummingbird
at the Tualatin River NWR on August 17. There are at least 5 other records of this species, with no discernable pattern to their occurrence. There are two over-wintering birds (November to March and December to March), two spring records (May and June) and two fall records (this one in August and one in September). Rather common, immature Anna's Hummingbirds can provide an identification challenge to tell them from Costa's.
July 2007:
American Wigeon hen at Jackson Bottom Wetlands, July 27, by
Greg Gillson
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