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Guide to selected species of:

Marin County

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Lark Sparrow
credit: www.naturespicsonline.com/CCSA

Perching Birds

Lark Sparrow  Chondestes grammacus

Family: New World Sparrows, Emberizidae
Audio: Martyn Stewart, © Naturesound.org

Description  ADULT Has streaked, gray-brown back and brown wings with faint pale wing bars. Head is boldly patterned: chestnut crown with pale central stripe, white supercilium, dark-framed chestnut ear coverts, and black malar stripe bordering white "mustache" and throat. Underparts are otherwise whitish, with striking dark central breast spot. JUVENILE Similar, but duller and much more streaked.

Dimensions  Length: 5 1/2-6 1/2" (14-17 cm)

Habitat  Fairly common summer visitor (mainly Apr-Aug) to bare, grassy ground, open woodland, and prairies with scattered bushes and trees. Winters in southern U.S. and Mexico.

Observation Tips  Easy to see in suitable habitats, but usually fairly thinly scattered.

Range  Northwest, Western Canada, Texas, California, Rocky Mountains, Mid-Atlantic, Plains, Eastern Canada, Great Lakes, Southeast, New England, Southwest, Florida

Voice  Song is a series of musical trills, buzzing phrases and whistling notes; call is a thin tsit.

Discussion  Large, well-marked sparrow. Often feeds on relatively open ground, hence easy to see. Forms small flocks outside breeding season. In flight, note the long, rounded, and mostly dark tail with striking white edges; pattern also used in display. Sexes are similar.