Breeds throughout most of North America from California to northern Alaska across Canada throughout the Great Lakes region, New Brunswick, Nova Scotia, down the Atlantic seaboard as far as the Carolinas and somewhat less dense throughout the Mississippi Valley and upper plains. Sparse to none in the arid south. In winter, they migrate to California and the gulf coast, Mexico, the Caribbean and Central America to Guatemala.

Builds nests of grass and straw lined with feathers three to thirty feet high in natural or abandoned tree cavities and cliffs and very often in nestboxes in woodland edges, groves, farms and towns usually near streams and wetlands where rich populations of flying insects spawn.

K. Davis

Lays about four to eight white eggs which hatch after about two weeks incubation and young leave the nest in about another three weeks. Often raise two broods per season.

In late summer, they form huge flocks sailing over open country and inhabiting marshes in the evenings before migrating.

Some return to the areas where they were raised and many reuse the same nest boxes.

Louis Agassiz Fuertes

Assembled with corrosion resistant screws fit to pre-drilled countersunk pilot holes. Hinged roof is secured with shutter hooks for easy access.

Mount on a tree trunk or post, or hang from a tree branch or under an eave between four and twenty feet high with partial sun and shade.

Remove the nest after the brood rearing seasons are over.

Sparrows, chickadees, titmice, nuthatches, downy woodpeckers and wrens may use this box.