Scientific name: Nyctalus leisleri
Size: Wingspan approx 330mm
Distribution: Rare. It's stronghold is in Northern Ireland, but populations can be found in England, southern Scotland and north Wales
Months seen: April to October
Echolocation Frequency: 20 - 30 kHz
Habitat: Roosts in trees and buildings
Food: Beetles, moths and flies
Special features: Leisler's bat is sometimes called the 'lesser noctule', or the 'hairy-armed bat' on account of the long, shaggy hair around the shoulders, which is like a miniature lion's mane.
Leisler's bats look similar to Serotine bats but can be distinguised by the forearm length which is shorter than the Serotine's. Leisler's bats also have a darker coloured face and tragus is short and rounded - a bit like a mushroom.