Social calls of the Soprano pipistrelle (Pipistrellus pygmaeus)
Recordings from 2024
The following example is an advertising male, emitting type D social calls while in flight. Fourteen social calls are present in the recording.
Date of recording: 2024-09-20 Recorded by: Sjoerdtje de Boer Audio file: 1008590
The following recordings contain some unusual echolocation calls, so I plotted multiple calls in GraphB made by R. Jamault & M. Barataud (2018). According to GraphB, the echolocation calls are outside the range of the common pipistrelle (Pipistrellus pipistrellus) and inside the range of the soprano pipistrelle when opposing the bandwith of the calls to their peak frequency and when opposing the bandwith of the calls to their end frequency. Not a single Nathusius' pipistrelle (Pipistrellus nathusii) was recorded during the survey.
Intriguingly enough, the first recording contains a trill-like social call just before the multi-component type D social call!
The second recording possibly contains a high-frequency social call - the end frequency is about 63,5 kHz.
Date of recordings: 2025-06-22 Recorded by: Sarah Mahie Audio files: (the trill-like social call), (the high-frequency call)
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).
Bibliography:
- Jamaul, R. & Barataud, M. (2018). GraphB v1.8. http://geoeco.fr/ecologie_acoustique/en/appli_graph
- Neil Middleton, Andrew Froud and Keith French (2022). Social Calls of the Bats of Britain and Ireland. Second edition. Pelagic Publishing.
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