Order: Chiroptera
Family: Vespertilionidae
Species: Plecotus auritus
IUCN Red List Status: Least concern
Also known as the Brown Big-eared Bat.
Distribution: Widespread throughout Ireland and Britain, except for Northern Scotland and the Western Isles. Also throughout Europe from the Mediterranean to Scandinavia.
Habitat: Trees and bushes, including in inhabited areas. Can be found in cellars and stables during the winter, and in hollow trees, steeples and lofts in summer.
Size: Body length 41-51mm; wingspan up to 28.5cm.
Weight: 5-10g.
Life Span: 4 - 5 years
Gestation: 60 - 70 days