The silver-haired bat is a hardy and generally solitary species. Mating occurs primarily in fall prior to migration. Females store sperm over winter, awaiting spring to ovulate and become pregnant in late April or May. Gestation lasts approximately 50 to 60 days and mothers give birth to one or typically two young.

Where do silver haired bats hibernate?

Silver-haired bats typically hibernate in small tree hollows, beneath sections of tree bark, in buildings, rock crevices, in wood piles, and on cliff faces. Occasionally they will hibernate in the entrances to caves, especially in northern regions of their range.

How big does a silver-haired bat get?

The silver-haired bat is a medium sized bat ranging from 9–11.5 cm in length and 8–12 grams in weight.