Nathusius’ Pipistrelle

Pipistrellus nathusii

LISTEN TO THE BAT

Introduction

Nathusius’ pipistrelle is a rare bat in the UK, though numbers have increased in recent years. It is a migratory species, and most bats are encountered in autumn, although some do remain all year and breed in the UK. It is similar in appearance but slightly larger than the much more commonly found Common and Soprana pipistrelles, and the fur on its back is longer, giving it a shaggier appearance. Nathusius’ pipistrelles are often found hunting insects over lakes, rivers, canals and other waterlogged areas, as well as in woodland rides and edges.

Head & body length:

4.6 – 5.5 cm

Forearm length:

3.2 – 3.8 cm

Wingspan:

22.8 – 25 cm

Weight:

6 – 16 g

Average colony size:

100 – 300

Lifespan:

up to 10 years

Colour:

Red-brown fur, occasionally with frosted tips on the belly. The ears, membranes and face are usually very dark.


Conservation Status

one of the UK’s rarest bats species

Roost sites

cracks in walls, under soffit boards, fissures in rocks and tree hollows

Diet

flies, caddisflies, midges and mosquitos

Echolocation

best heard at 38kHz