There are three species of bluebird found in North America: Eastern Bluebird; Mountain Bluebird; and Western Bluebird. All three are part of the thrush family. Eastern Bluebirds range east of the Rocky Mountains and down into parts of Mexico and Central America.
Eastern Bluebirds all have whitish bellies. Males have bright blue heads and backs, with bright reddish brown breasts. Females are similarly colored, but the hues are much more subdued.
Eastern Bluebird populations declined through the 1900's, primarily due to nest predation by introduced House Sparrows and European Starlings. Eastern Bluebird populations have been increasing through nestbox schemes and monitoring groups who maintain bluebird trails to help the birds successfully nest.