A large group of greater mouse-eared bats (Myotis myotis) hibernate on the ...

A water bat (Myotis daubentonii) can be seen with its wings spread out on a...

Bats hibernate in a large group on the ceiling of a vaulted cellar in the o...

A greater mouse-eared bat (Myotis myotis) hibernates on a wall in the vault...

Bats hibernate in a large group on the ceiling of a vaulted cellar in the o...

The bat roost in the old brewery. One of the most important bat roosts in t...

Visitors begin a guided tour of the bats in the ruins of the old brewery. O...

Two fringed bats (Myotis nattereri) hibernate in a crevice between bricks i...

Visitors are on a guided tour of the bats in the cellars of the old brewery...