Often described as elegant, this common sparrow is one of 5 species in the genus Zonotrichia. The subspecies shown here is Z. l. pugetensis. Photo taken through a spotting scope. Habitat was a riparian edge, and this bird was chipping to its mate on a nearby wire.
Here's a second example from 550 mi (885 Km) away from the Arizona sample in Monterey County, CA, which demonstrates dialectic differences in this species' songs.