Probably does not breed in California. In other areas, small nursery colonies are formed in rocky crevices in high cliffs. No data found. Prefers rugged, rocky canyons. Emerges late in the evening.
Many individuals wander widely in autumn, resulting in records far out of the normal range.
A single young is born annually. The young are capable of flight in August to mid-September. A moth strategist and rapid flier. Bats of America. Univ. of Kentucky Press, Lexington.