Some areas have found 10 to 15 bats in a maternity colony with a single mature male.

Primary roosts typically support more than 30 bats at a time and are used most often by a maternity colony.

The number of roosts used and home range occupied by a maternity colony can vary widely.

The nursing females form maternity colonies of 20-40 individuals in one tent roost.

These maternity colonies roost in foliage and are usually exposed to more light than any other bat species.

After the breeding season, pregnant females separate themselves into maternity colonies.

The young clings to the mother for about a week, after which they remain in the maternity colony until they are able to fly.

Females gather in maternity colonies of 40 to 80 bats during June and July.

The state Health Department's expert on bats said the house had become home to a "maternity colony."

Three maternity colonies have been identified which have at least eighty breeding females.