What is it about?
From the standpoint of studying relationships in the “predator-prey” system, joint vocalizations of predator birds and their potential prey are of particular importance. However, there is still very little information in the scientific literature about adaptations to the co-vocalisations of Eagle Owl and other bird species that do not belong to the Strigidae family. It is only known that this happens very rarely, and each case is of undoubted significance, because the Eagle Owl is a large owl, which is feared by many birds. In addition, before that it was not known under what meteorological conditions of the seasons of the year these interactions can occur. Therefore, the purpose of this study is to quantify the joint territorial calls of Eagle Owl with other birds under certain natural and climatic conditions of the region.
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Photo by Hans Veth on Unsplash
Why is it important?
In the course of the research, co-vocalisation of Eagle Owl with the hooded crow, common raven, common cuckoo, common crane and european nightjars was revealed. Most of the registrations of co-vocalisations of Eagle Owl and other birds were noted during the twilight hours, timed to coincide with sunset or dawn, although a number of species are diurnal.
Perspectives
Co-vocalisation was recorded in different seasons, but mainly in spring (64 %). Statistically significant differences in co-vocalisation were obtained with the use of Mann–Whitney U test for atmospheric pressure (Z = –4,72, p < 0,05) and wind strength (Z = –4,49, p < 0,05).
Alexey Andreychev
Read the Original
This page is a summary of: Adaptations of co-vocalisation of non-owl birds with Eagle Owls (Bubo bubo) in natural and climatic conditions of Mordovia, University proceedings Volga region Natural sciences, January 2023, Penza State University,
DOI: 10.21685/2307-9150-2023-1-4.
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