What is it about?

The article considers the recordings of the vocalization of Tengmalm's owl in the Middle Volga were obtained using dictaphones.

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Why is it important?

The first calls of Tengmalm's owl were recorded 1 h 30 min after sunset. The last calls were recorded 3 h 45 min before sunrise. The longest vocalization interval was observed at night. The frequency range of male calls is 550-950 Hz. Continuous vocal activity in certain periods of the day lasted from 3 min to 27 min. Vocal activity were observed in the temperature range from-5 to +6°C. Calls were recorded at wind strength from 1 to 3 m/s, at cloud cover from 10 to 30%, at pressure from 750 to 764 mm Hg.


Our findings serve as a baseline facilitating further behavioural study in the future with respect to vocalizations of the owls of the Volga river region. The increased use of passive acoustic recorders, which record spontaneous vocalizations made by animals over a long period of time, will allow us to better study ecology.

Alexey Andreychev

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This page is a summary of: Vocal activity of Tengmalm’s owls (Aegolius funereus) in the Middle Volga, E3S Web of Conferences, January 2024, EDP Sciences,
DOI: 10.1051/e3sconf/202451003007.
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