Adults have light brown upperparts and light underparts, both with darker streaking. They have a white eye ring and a long dark brown tail which shows white outer feathers in flight.
Habitat and Distribution
The breeding habitat of Vesper Sparrows is open grassy areas across most of North America. Vesper Sparrows migrate to the southern and central United States and Mexico.
These birds forage on the ground, mainly eating insects and seeds. Outside the nesting season they often feed in small flocks.
The nest is an open cup on the ground under a clump of grass.
Calls and Songs
The male sings from a higher perch, a shrub or fencepost, as a sign of ownership of the nesting territory.The song begins with two pairs of repeated whistled notes and ends in a series of trills similar to that of the Song Sparrow.