During my time studying bats we used anabat detectors https://www.titley-scientific.com/us/products/anabat-systems/anabat-sd2-bat-detector https://www.titley-sc

During my time studying bats we used anabat detectors https://www.titley-scientific.com/us/products/anabat-systems/anabat-sd2-bat-detector https://www.titley-scientific.com/us/products/anabat-systems... To record bat echolocation and visually analyze the waveforms to determine the species and type of call. Different species echolocate at different frequencies and the calls they make when they're travelling, searching for prey and diving to eat all look different from each other and different between species.