Known from Pinnacles and Hastings. Pelt on tail membrane is used as a blanket. In the western U.S., present in CA, AZ, absent in southern and central Rockies, and then present east of the rockies to the east coast and south to Central America. Ovulation and birth is in spring, often 2-4 in litter. Pair or mother and young roost solitarily in trees.
Mother leaves young in roost while foraging.
Young cling to mother who can fly from one roost to another while carrying one young. Rarely use buildings, occur as solitary family groups. Probably highly migratory. Present in San Francisco area from Sep to May but absent in summer, yet in Yolo County, absent in winter and present in Feb and Mar. Males may spend summer and falls apart from females. Peak activity 1-2 hr after sunset.