Bat Detective book & CD/USB

… A field guide for bat detection
by Brian Briggs and David King
 
“This book, together with the accompanying CD/USB, provides an essential reference for bat enthusiasts who would like to gain or improve their skills in identifying British bats, using a bat detector.
 
The material has been gathered from experience gained in numerous bat detector workshops, throughout Europe, and is suitable for those who have just acquired a bat detector as well as for more experienced bat workers. The sounds of 13 bat species are included in the 48 tracks of the CD/USB. This is the first ever comprehensive compilation of British bat recordings on compact disc (also available on USB stick).”
 
Paperback book. Image of USB not to scale.