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Imo, the cause for both is the lighting. Direct lighting on the back brings out the colors, while a shadowed view of the undertail coverts softens the colors.The face is too demarcated the crown too dark for OCWA to me.Andy, was the bird pumping its tail up and down?
I think it's too green on the back and not a bright enough yellow on the undertail coverts or contrasting yellow to be a Palm, such as the one I just posted here. http://www.projectnoah.org/spottings/186...
Yeah, I think it's a Palm Warbler. I've seen many Orange-crowns around here and they've all been much yellower overall.
I'd say it looks most like the Palm warbler. The only real doubt I have is it's green back; the PW is brown.
It is a Palm Warbler, nominate (Western) form. Orange-crowned Warblers are rarely so drab, and never show that much of a facial pattern or breast streaking.
Looks like you got some good suggestions. If you have a copy of the Sibley field guide, take a look at the winter plumage Orange-crowns. The facial pattern is more subtle than that of a Palm Warbler and the undertail coverts are more consistent with Orange-crowns. It's also more expected in Arcata in winter.
Spotted on Feb 24, 2013 Submitted on Feb 25, 2013
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