Nest boxes help many species of birds, including eastern bluebirds, tree swallows and wood ducks, by providing protection ...

In eastern North America, the only swallows that nest in birdhouses are purple martins and tree swallows. The snowy white throat contrasting with the steel-blue top of the head makes this one a ...

The shelters are seasonal homes for tree swallows and eastern bluebirds ... Another key design element is a predator guard added on the pole beneath the nest box. The work was completed in ...