Bats
are the ONLY flying mammals. The forelimbs of bats are
webbed and developed as wings, but they do not flap their
entire forelimbs, as birds do, but instead flap their
spread out digits, which are very long and covered with
a thin membrane. We generally only see two species of
Bat during the course of our work though there are many
more British Bats, in fact there are 18, those that we
have worked with are pictured below:-