Other Names: none
Distribution : desert regions of the southwestern United States and northern Mexico.
Size: 11-13 cm in length.
Plumage: Generally gray above and off-white below. Breeding males have a black crown that extends to the eyes during summer. They have a long black tail, with narrow white edges and white tips on the outermost feathers. Non-breeding males, females, and juveniles are duller. The legs, beak, and eyes are black.