Recording made in the caves of Pastena, just below the colony of bats that live in an area of the caves. The recorded sound is obviously only a minimal part of that produced by this mammal, which extends along an area of frequencies well above the one it can capture a common recorder, and well beyond the area of audibility of the human ear.
Recorded with a Zoom H4n.
Author: Marcello LiberatoDate: 16/05/2011