Black-chinned SparrowSpizella atrogularis
5-5 1/2" (13-14 cm). A gray sparrow with black chin and eye smudge, pink bill, chestnut-streaked mantle, white belly. Thin white wing bars. Female and juveniles lack black facial markings.
The beautiful song is a series of slurred notes, either swee? swee? or chew chew chew, running together into a rapid canary-like trill.
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Low, dense chaparral on arid mountain slopes; sagebrush.
Breeds from central California, southern Nevada, southern Utah, Arizona, southern New Mexico, and western Texas southward. Winters along Mexican border.
Very little is known about the habits of this sparrow. Singing males are conspicuous when they sit on top of high bushes; their song carries well through the narrow, brushy canyons they inhabit, but in general the species is shy and secretive.
3 or 4 pale blue, plain or spotted eggs in a grass-lined cup well concealed in a low bush.