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Vocal behaviour and neighbour spatial arrangement during vocal displays in eagle owls ( Bubo bubo )
Author(s) -
Delgado M. M.,
Penteriani V.
Publication year - 2007
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.2006.00205.x
Subject(s) - bubo , eagle , biology , sunrise , sunset , zoology , ecology , geography , meteorology , physics , astronomy
We quantified temporal and spatial patterns of adult eagle owl Bubo bubo vocal behaviour throughout an entire year. The duration of adult eagle owl vocal displays showed significant differences during different periods of the year: there was one major peak in the pre‐laying period, when duets of mates were also more frequent. The daily distribution of adult vocalizations showed a similar pattern among the different periods, with vocal activity being most intense at sunset and sunrise. Analyses of the characteristics of call posts showed that the choice of such focal points was guided by the trade‐off between the need to defend the territory and within‐pair communication inside the core areas, as well as efficient communication with neighbours.