Northern Prairie Wildlife Research Center
STATUS: Population is low but stable.
HABITAT: Nests in nearly all forest types of the Rocky Mountain region, usually from 7,000 to 11,000 feet in open forests or near forest edges. During migration and in winter, also frequents grasslands, open brushy country, and agricultural lands.
SPECIAL HABITAT REQUIREMENTS: Cavity nests and feeding perches.
NEST: Usually nests in old woodpecker holes or natural cavities in dead trees in open areas or near forest edges. Will also use nest boxes.
FOOD: Hawks from high perches or flies to the ground to catch its prey. Probably more insectivorous than the other bluebirds; nearly 92 percent of the diet is animal material; the small amount of vegetable food includes fruits, hackberry seeds, and cedar berries.
REFERENCES: Beal 1915a, Burleigh 1972, Herlugson 1982, Scott et al. 1977, Tate and Tate 1982.