Most of our bats dine on insects, which means that their food supplies are very short during the winter months. Many bats perish when the cold weather kills off the hordes of flying insects   but others make preparations for the coming winter. Some of them fly south to warmer climates where insects are plentiful throughout the year. Others hibernate.

Come fall, the hibernating bats stuff themselves with extra food to gain a layer of warm fat. Long before the snow comes, these fellows have tucked themselves away and gone into the deep sleep of hibernation. Some hibernate in caves, some in hollow trees and once in a while you may find a hibernating bat sleeping under the roof of a barn.