Both species are micro bats. Usually nocturnal, their habitats include forests, farmland and urban areas, roosting in tree hollows, buildings and small crevices. They hibernate in winter, usually mating and giving birth in maternity roosts to one young annually, cared for until they are independent.

The Lesser Long-eared bat flies slowly close to the ground, using a whispering technique to locate prey of moths and other insects. If on the ground, the bat captures it and relaunches almost vertically. The very long ears of Gould's Long-eared bat fold down when the bats are resting. They are highly adaptable and resilient and the most widespread bats endemic to Australia.

Size: Lesser: body up to 50mm, ears from 17-25mm. Gould’s: body up to 58mm, tail to 55mm

Illustration: Mark Trinham. 1st Photo: Trevor Pescott - Goulds Long-eared Bat. 2nd Photo: Trevor Pescott - Lesser Long-eared bat