A common sight in ranchland and other open areas of the American West, the male Mountain Bluebird is a breathtaking brilliant sky blue. It prefers more open habitats than the other bluebirds and can be found in colder habitats in winter.
Medium-sized songbird; small thrush. Head large and round. Body chunky. Tail medium length. Blue in wings and tail. Male sky blue overall.
Body, head, wings, and tail sky blue; brighter above, paler below. Belly white. Duller brownish blue in winter.
Brown-blue overall. Brighter pale sky blue on rump, wings, and tail. Head and back bluish gray. White eyering. Sometimes a faint malar streak. Chest may have some reddish. Some females are more brownish than others.
Juvenile with spotted chest and unspotted back, blue in wings and tail. Immature similar to adult but duller.