Click on the following buttons to see all relevant recordings of that specific year:

Type C

Example: Files of Zoogdierenwerkgroep Zuid-Holland

Type D

The most general type D social call of the soprano pipistrelle is the variant of three components.
Example of an advertising bat: 1008590 (3-comp. versions), 1034292 + 1034296 (also contains a 4-comp. version), 1034293 (also contains a joined-comp. version)

All images on this page are licensed under the following Creative Commons Attribution-NonCommercial-NoDerivs 4.0 license and in courtesy of Sarah Mahie. 

Bilbiography:

- Neil Middleton, Andrew Froud and Keith French (2022). Social Calls of the Bats of Britain and Ireland (second edition). Pelagic Publishing.