 It switches between winter hibernation roosts and summer maternity caves, an occupied cave may contain up to 1500 individual bats.In KwaZulu Natal copulation occurred in May and the females stored the sperm until using it to fertilise the ovum in September, the young were born in November and December, the suckled for six weeks after birth.Each female give birth to a single baby and they gather together in maternity roosts to do so.