Bechstein's bat  (Myotis bechsteinii)

Description

This rare tree-dwelling bat has long, broad ears with a long lancet shaped tragus (a soft cartilaginous projection in front of the ear). Adults have quite long fur, which is pale to reddish brown on the dorsal surface and light grey on the ventral surface. Juveniles are light ashy-grey (2). The wings are short, relatively broad and light brown to grey in colour. Partial albinism may occur, in which the wing tips are white (2). When threatened, hollow humming or chirping calls are produced; in flight this species does not make audible calls. Bechstein's bat produces 2 types of echolocation calls when flying; short FM signals between 80-38 kHz and flat, longer FM signals at 60-32 kHz (2).

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