Whiskered Bat

Myotis mystacinus

LISTEN TO THE BAT

Introduction

The Whiskered bat is very similar to Brandt’s bat and the two species were only separated in 1970. Both are small species with somewhat shaggy fur – though Brandt’s bat is slightly larger than the Whiskered bat. The two species are most reliably separated by differences in dentition and penis shape. Other distinguishing features are thought to include tragus shape and claw length. Whiskered bats are mostly found in wooded country and often near water.

Head & body length:

3.5 – 4.8 cm

Forearm length:

3 – 3.7 cm

Wingspan:

21 – 24 cm

Weight:

4 – 8 g

Average colony size:

30 – 100

Lifespan:

up to 20 years

Colour:

Dark grey or brown fur with golden tips on the back and greyish underneath.


Conservation Status

A common mammal

Roost sites

old and new buildings with stone walls and slate roof

Diet

moths, other small insects and spiders

Echolocation

can best be heard at 45kHz