La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Primary moult in non-breeding second-calendar-year Swifts Apus apus during summer in Europe (2015)
Auteurs :	Joop Jukema, Auteur ; Henk van de Wetering, Auteur ; Raymond H.G. Klaassen, Auteur
Type de document :	Article
Dans :	Ringing & Migration (30(1) janvier 2, 2015)
Article en page(s) :	1-6
Résumé :	Little is known about the extent of primary moult in non-breeding second-calendar-year Swifts during summer in Europe. A sample of 352 Swifts of this age group was captured during May–July in a village in the Netherlands. Primary moult was almost completely restricted to July. During the first and second halves of July, respectively, 20% and 60% of the second-calendar-year Swifts were moulting. Moult was restricted to the first four inner primaries, but 62% of individuals moulted the innermost primary only. Surprisingly, in 63% of moulting birds, primary moult was asymmetric.
En ligne :	http://www.tandfonline.com/doi/full/10.1080/03078698.2015.1059632

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