Northern Prairie Wildlife Research Center
STATUS: Fairly common.
HABITAT: Found in two primary habitats; areas with water, such as boulder-strewn streams, rocky canyons, and river gorges, and major rock formations, such as tall cliffs, large caves, mesas, and buttes. Prefers cool, shaded canyons with rock outcrops.
SPECIAL HABITAT REQUIREMENTS: Small cliffs, talus, or rock outcrops for nesting and foraging.
NEST: Favors ledges in caverns or rocky crevices for nest sites but sometimes attaches nest to a rock face in a cave or wide crevice. May also nest in buildings.
FOOD: Forages mainly in secluded or covered habitats, gleaning insects and spiders from rock surfaces or the ground.
REFERENCES: Bent 1948, Johnsgard 1979, Verner and Boss 1980, Webster in Farrand 1983b.