Brown Long-Eared Bat

Plecotus auritus

LISTEN TO THE BAT

Introduction

Brown long-eared bats are medium-sized. Their ears are nearly as long as their body but not always obvious: when at rest they curl their ears back like rams’ horns, or tuck them away completely under their wings leaving only the pointed inner lobe of the ear (the tragus) visible. Brown long-eared bats feed in large gardens, along hedgerows, in parks and in woodlands.

Head & body length:

3.7 – 5.2 cm

Forearm length:

3.4 – 4.2 cm

Wingspan:

23 – 28.5 cm

Weight:

6 – 12 g

Average colony size:

10 – 20

Lifespan:

up to 30 years

Colour:

Adults have light brown fur, pale underneath. Juveniles are greyish. Easily confused with the grey long-eared bat!


Conservation Status

A common mammal

Roost sites

older buildings, barns, churches and trees

Diet

moths, beetles, flies, earwigs and spiders

Echolocation

can best be heard at 35kHz