All social calls depicted on this page were recorded in the vicinity of a roost.

To listen to type A social calls, you can visit the files in this list on Xeno Canto.

Common noctule:

Pond bat:

Brown long-eared bat:

All recordings are licensed under the following Creative Commons Attribution-NonCommercial-NoDerivs 4.0 license and in courtesy of Sarah Mahie. 
All sonograms are screenshots of the recordings imported in the ultrasound analysis software BatExplorer 2.2 (Elekon, Switzerland).