The mountain bluebird is migratory.
Their range varies from Mexico in
the winter to as far north as Alaska,
throughout the western U.S. and Canada. Northern birds migrate to the southern
parts of the range; southern birds are often permanent residents. Some birds
may move to lower elevations in winter. They inhabit open rangelands, meadows,
generally at elevations above 5,000 feet. Contrary to popular belief, mountain
bluebirds are not a species of concern in the United States. The turnaround in
mountain bluebird numbers is due to the overwhelming efforts of landowners in
the West to provide nest boxes for these birds. At one time, mountain bluebird
numbers were threatened because of increased agricultural activities destroying
habitats.