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Behaviour of female common cuckoos, Cuculus canorus, in the vicinity of host nests before and during egg laying: a radiotelemetry study
Ist Teil von
Animal behaviour, 2002-12, Vol.64 (6), p.861-868
Ort / Verlag
Kent: Elsevier Ltd
Erscheinungsjahr
2002
Link zum Volltext
Quelle
Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)
Beschreibungen/Notizen
We radiotracked 13 common cuckoo females in the southeastern part of the Czech Republic. Seven females laid eggs in the nests of reed warblers,
Acrocephalus scirpaceus, sedge warblers,
A. schoenobaenus, and marsh warblers,
A.
palustris
. We observed 53 nest visits, of which 26 involved egg laying. Cuckoos spent significantly more time within 50
m of the host nest on the laying day than on the 5 prelaying days. The vantage point used when parasitizing or visiting a nest was on average four times further from the nest than the closest possible vantage point, but there was a positive correlation between these two distances. Cuckoos spent on average 20
min observing host nests from their vantage points before they visited a nest. Comparison of cuckoos' visits to host nests with and without egg laying revealed no significant differences in the duration of visits or in other measures of behaviour. There was significant variation in behaviour between cuckoos, particularly in the time of day when eggs were laid in host nests. This variation can be attributed to the strong, but not absolute, host and habitat specificity of individuals.
Copyright 2002 The Association for the Study of Animal Behaviour. Published by Elsevier Science Ltd. All rights reserved.