catacombs of the eastern crimea, home to colonies of bats

colonies eastern crimea catacombs chiroptera microchiroptera megachiroptera scrotifera chordata wild cave nature closeup brown wildlife mammal colony flittermouse animals mammals sleep bats mice vampires caving conservation biodiversity nocturnal grotto cavern upside fly insectivore mouseeared vespertilionidae insectivorous bat myotis blythii lesser rhinolophus ferrumequinum