Reed warbler orientation: initiation of nocturnal migratory flights in relation to visibility of celestial cues at dusk

Author: Åkesson S.   Walinder G.   Karlsson L.   Ehnbom S.  

Publisher: Elsevier

ISSN: 0003-3472

Source: Animal Behaviour, Vol.61, Iss.1, 2001-01, pp. : 181-189

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Abstract