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

The tree swallow is typically a straightforward enough ... and she lays up to eight white or pale pink eggs. Females have one or two broods each nesting season, and both parents help feed and ...

The tree swallow is larger, entirely greenish blue ... or columnar cactuses; 4–6 eggs (April–May). Migration: in spring, arrives in southern Arizona and southern California by late February ...