Hutton's Vireo
Vireo huttoni
These Hutton's Vireos were observed by the bird bath at my home. The one on the right (with Chestnut-Backed Chickadee in the background) is good for comparison with the very similar-looking Ruby-Crowned Kinglet. Note that the secondary wings are all olive right below the lower of the two primary white edges; the Kinglet has a dark bar right below the white edge. (Click on either photograph for an enlarged version.)