Noctule bat  (Nyctalus noctula)

The noctule is one of the largest bats in Europe (7). It has long, narrow wings (2), and the short fur lies close to the body. The back is reddish-brown and develops a glossy sheen during summer. The belly is a duller, lighter brown (2). Juveniles are darker than adults, and have pale brown backs (2). The wing membranes, nose and broad triangular-shaped ears are blackish-brown (2).