Yellow-rumped "Audubon's" Warbler
This winter-plumaged Yellow-rump (which birders sometimes refer to as YRW) was hunting among the fallen branches of a Douglas Fir tree in McMinnville, Oregon, on Dec. 21, 2010. A short video of his activity can be seen at the following YouTube link:
http://www.youtube.com/watch?v=y5mIRF-Wvaw
...or you can access it also at the link below this photo.