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bioacoustics paper in J Zool

To: Bioacoustics <>
Subject: bioacoustics paper in J Zool
From: Alan McElligott <>
Date: Mon, 8 Jan 2007 12:10:24 +0000 (GMT)
M. M. Delgado &  V. Penteriani
Vocal behaviour and neighbour spatial arrangement during vocal
displays in eagle owls (Bubo bubo)
Journal of Zoology 271(1), p. 3
January 2007


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.

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