La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Notes on breeding biology and site fidelity of Wood Warbler Phylloscopus sibilatrix in Westphalia-Lippe (Germany)
Auteurs :	Wolfgang Lippek, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (130(4) 2009)
Article en page(s) :	165-174
Résumé :	In the 1970s, a project dealing with the breeding biology of Wood Warbler in Westphalia-Lippe (western Germany, study area 4,232 km(2)) included the ringing of 3,351 individuals (breeding adults and offspring). In this study results concerning site fidelity and relocation, but also clutch size and nest habitat are presented.The recapture rate in subsequent years was 3.77% in males, only 0.49% in females and 0.30% in birds ringed as nestlings. Nearly 96% of adults - most of them males - showed fidelity to the study area (recaptured up to a distance of 40 km), and 54% returned even to their earlier breeding territory (recaptured up to a distance of 1.7 km). Only three birds were found far away in 169 km, 263 km and 323 km from the ringing site. Recaptures within the same breeding season usually occurred within the own territory, only three birds were found in a distance of 2 km, 6 km and 190 km, respectively.The average clutch size was 5.36 eggs, but decreased in the course of the breeding season. Nests were often found in leaf litter (often in combination with brushwood or roots) or at hummocks and shrubs, sometimes in the herbal layer and relatively scarce at slopes.

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