Surveying for mircobats can be tricky especially since as they are small, hard to see and their calls are inaudible to the human ear.
Lachlan “The Bat Man” McRae, talks about how he records the ultrasonic pulses (or calls) of microbats and how he can distinguish between microbat species.
Travers bushfire & ecology record microbats to determine if there are threatened species on a site or development. It’s a fascinating look into what Lachlan gets up at Travers bushfire & ecology.