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Type D

Used as advertisement calls by advertising male bats.

Example: Youtube

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

Bibliography:

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