The lark sparrow (Chondestes grammacus) is a fairly large American sparrow. It is the only member of the genus Chondestes.
Description and habits
This passerine bird breeds in southern Canada, much of the United States, and northern Mexico. It is much less common in the east, where its range is contracting. The populations in Mexico and adjacent states of the United States are resident, but other birds are migratory, wintering in the southern United States, Mexico and south to Guatemala.
The lark sparrow is distinctive. Adults have a typically sparrow-like dark-streaked brown back, and white underparts except for a dark central spot. The cheeks and crown sides are chestnut, with white eyebrow and crown stripes. The dark tail's corners are also white. Young lark sparrows are duller, and the underparts are streaked.
The breeding habitat is a variety of open habitats including grasslands and cultivation. Lark sparrows nest on the ground, laying three to six eggs in a grass cup nest sheltered by a clump of grass or other vegetation. The eggs are white with black scrawling.
The song is two clear notes followed by a mixture of buzzes and trills. The flight call is a thin sit.
- Buntings and Sparrows by Byers, Olsson and Curson, ISBN 0-7470-3202-5
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- Lark sparrow species account - Cornell Lab of Ornithology
- Lark sparrow - Chondestes grammacus - USGS Patuxent Bird Identification InfoCenter
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- Lark sparrow photo gallery at VIREO (Drexel University)
- Interactive range map of Chondestes grammacus at IUCN Red List maps
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