Leisler’s Bat Nyctalus leisleri
A medium-sized, fast-flying bat resembling a smaller version of the Noctule, with which it is sometimes confused. Dark reddish-brown fur with pale-tipped hairs on the back; dark face and ears; long, narrow wings adapted for swift foraging above the tree canopy and in open airspace. Roosts predominantly in tree holes and bat boxes. Image: © Yuzefovich Alexander, iNaturalist.
Find out more: Bat Conservation Trust, Suffolk Wildlife Trust, iNaturalist, The Mammal Society
Post-1994 distribution maps (tetrad)
Suffolk’s Priority Bat Species
Key
Listed as a conservation priority in Suffolk’s Biodiversity Action Plan.
Closely associated with Suffolk’s landscape and natural identity.
Identified as a key priority for recovery under Suffolk’s Local Nature Recovery Strategy.
Has a Species of the Month article attached.
2025 Fact Sheet