La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	All you can eat: do peck rates of Greylag Geese (Anser anser) vary with age and social status?
Auteurs :	Friederike Woog, Auteur ; Konrad Schwarz, Auteur ; Mark Hulme, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (153(4) OCT 2012)
Article en page(s) :	1025-1029
Langues:	Anglais
Résumé :	Peck rates (pecks/min) were used to compare the relative frequencies of food intake of Greylag Geese (Anser anser) of different gosling ages and of different social statuses. As the goslings grew up, their peck rates increased, and by the time of fledging they had reached the level of nonbreeders. Parent birds pecked the fastest. This may be due to the fact that they spent more time being vigilant over their goslings and as a result had less time for feeding, thus compensating for their lack of time by pecking faster.

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