[sanjayjc]

Thanks jcims for sharing this amazing info! However, I wonder how these very loud bats, all in close proximity, don't get confused by each others' calls? Is the answer their frequency sweeping? Or does each have something analogous to a unique "voice"?

[jcims]

Good question! Yes they definitely have unique voices and call signatures. A single string of calls from a single bat will have variation between calls as well (especially in search phase).

It'd imagine there's a lot of neurophysical adaptation involved as well, just like listening to a single conversation in a crowded room.

That said, hunting in an area filled with bats is probably not as effective as being in a quiet place.