Size: L 5-51/2 in. (13-14 cm).
Range: common summer breeder and uncommon migrant in the Canadian and northern U.S. Rockies; uncommon to rare breeder and migrant in the central U.S. Rockies; rare elsewhere in the Rockies.
Habitat: forest edges, birch and willow shrubs, patches of rose bushes, semi-open areas and open deciduous forests in the lower montane.
Nesting: very low in a grassy tuft or small bush; cup nest is woven with grass and small roots and lined with fine materials, including fur; pair incubates 3-4 bluish-green, speckled eggs for 10-12 days.
Feeding: forages on the ground and gleans low vegetation for seeds; also eats grasshoppers and other insects.
Voice: call is a soft chip; song is an insect-like, repeated, flat buzz that usually skips between 2-3 pitches.
Similar Species: Brewer's Sparrow: less contrast in the face markings; faint eye ring; faint (if present) crown stripe