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

Type A

Used aggressively while individual bats are in dispute with each other within the roost (Middleton et al., 2020).
Recorded underneath a roosting colony. Examples: 921156, 921145, 921146, 924494

Type B

Roosting sounds. Components often clustered in small groups, but can be in long sequences too. Examples: 921164, 921165, 920967, 920938, 924450, 924495

Type C

Almost 97% of the social calls of brown long-eared bats that were recorded during a research to social calls of brown long-eared bats conducted by Murphy (2012) fell into the type C category (Middleton et al., 2020). The type C social calls of this species look very similar to their regular echolocation calls, but are lower in frequency.

Examples: 912745, 920956, 920954, 921159, 921162, 921161, 924476, 924477

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

Literature list:

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

- S. E. Murphey (2012). Function of social calls in brown long-eared bats Plecotus auritus. PhD thesis, School of Life Sciences at the University of Sussex.