Hildegarde's tomb bat roosts in groups in coastal coral caves in East Africa. It feeds mainly on insects, and males can develop a dark, beard-like mark on the chest fur.
Males have a scent-marking gland on the chest. Its oily secretion can darken the fur, making it look like a black beard.
It roosts in groups in coral caves along the coasts of Kenya and Tanzania. It feeds mainly on insects, catching moths and grasshoppers in flight or gleaning them from vegetation.
An extinction-risk assessment has not been added yet.