Other Names: none
Distribution: discontiuously throughout the intermountain west of the United States in summer; southwestern coasts of Mexico in winter.
Size: 11-12 cm in length with a 18-20 cm wingspan.
Plumage: Males are gray above, with a yellow breast, rump, and undertail. The throat and underside are white, and there is a chestnut crown patch and white eye ring visible at close range. Females are duller overall. The legs and beak are dark gray and the eyes are black.