It can be difficult to identify bats by their echolocation calls as heard through a bat detector. This book provides a readable, practical introduction to identifying calls of the British bats, and excellent reference for the more experienced. Highly recommended if you have just purchased your first heterodyne detector, and for anyone wishing to improve their identification skills.

About bats
Right from the beginning
Why do they fly like that?
Wing shape and behaviour
Physics of sound and the jargon
Describing bat ultrasound
Vibrations in a call
Methods of detecting ultrasonic calls
Interpreting the sounds of the heterodyne detector
The zero point
Individual species accounts
Foraging styles
Getting started
A bat detector survey
Summary charts
Bat detector suppliers
Useful adresses
Index of CD tracks and commentary

Pipistrelle (Pipistrellus pipistrellus), Serotine (Eptesticus serotinus), Noctule (Nyctalus noctula), Leisler's Bat (Nyctalus leisleri), Long-eared bats (Plecotus auritus and Plecotus austriacus), Nathusius' Pipistrelle (Pipistrellus nathusii), Barbastelle (Barbastella barbastellus), Whiskered and Brandt's bats (Myotis mystacinus and brandtii), Daubenton's (Myotis daubentonii), Natterer's bat (Myotis nattereri), Bechstein's bat (Myotis bechsteinii), Greater horseshoe (Rhinolophus ferrumequinum), Lesser horseshoe (Rhiolophus hipposideros).

Author: Brian Briggs and David King
Publication date: 1998
Format: Paperback + audio CD
Dimensions: 148 x 210 mm
Pages: 56
Illustrations: Black & white drawings
ISBN-10: 0953242609
ISBN-13: 9780953242603
Publisher: Batbox Ltd