We were given ultrasonic devices to help detect when a bat was nearby, and found out the different frequencies that different types of bats use when navigating. On the night we found some common pipistrelle bats and some Daubenton’s bats – soprano pipistrelle bats were around the 55 kHz while Daubenton’s bats are around the 30 ‘odd kHz.
A great night, with lots of bat sightings (Pipistrelles were mostly found around the trees and woods, while the Daubenton’s bats could be found flying low over water catching insects). Well worth going to and really interesting!
Painshill Park: http://www.painshill.co.uk/
Surrey Bat Group: http://www.surreybats.org.uk/
Painshill Bat Walk: http://www.painshill.co.uk/bat-walk/