Its echolocation calls have the most energy at 61 kHz, and have an average duration of 3.3 ms.

Since their echolocation calls are very similar they suggested both species are probably the same taxon.

The species can easily be identified from recordings of its echolocation call.

Their echolocation calls are relatively long, lasting from 28 to 42 milliseconds, with only short pauses between pulses.

This keeps the returning echo in the same frequency range of the normal echolocation call.

In addition, the echolocation calls were recorded to see if those varied.

Typically bat social calls use a lower frequency range than echolocation calls, and can thus be heard further away.

The echolocation calls are single "hockey stick" calls at a higher repetition rate.

The bats also find roosting sites by listening to the echolocation calls of other individuals.

One method that looks promising is monitoring the bats' echolocation calls.