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Summary: Non-territorial nightingales
prospect territories during
the dawn chorus
Valentin Amrhein1*
, Hansjoerg P. Kunc2
and Marc Naguib2
1
Research Station Petite Camargue Alsacienne, University of Basel
(Switzerland), Rue de la Pisciculture, 68300 Saint-Louis, France
2
Department of Animal Behaviour, University of Bielefeld,
PO Box 100131, 33501 Bielefeld, Germany
*
Author for correspondence (v.amrhein@unibas.ch).
Recd 22.09.03; Accptd 29.10.03; Published online 10.12.03
Male songbirds usually sing when they have occu-
pied a territory, but the territory prospecting of
non-territorial males is more elusive and has been
rarely studied. Here, we simulated newly arriving,
non-territorial males by translocating unmated
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