Range. - Southwestern United States from western Texas to eastern California; north to southern Utah and Nevada. This species may be known from any other of the curve-billed Thrashers by its grayish underparts and bright chestnut under tail coverts. These sweet songsters are abundant in suitable localities, nesting at low elevations in chaparral. Their nests are large, and bulkily made of sticks and rootlets; the eggs range from two to four in number and are pale greenish blue, unmarked. Size 1.10 x .75.