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The role of male mate-guarding in pre-laying Common Eiders Somateria m. mollissima in the northern Baltic Sea

M. Hario, Auteur ; T. E. Hollmen, Auteur

Dans Ornis Fennica (81(3) 2004)

During the two weeks prior to laying on the Finnish breeding grounds in the central Gulf of Finland, Baltic Common Eider males escorted their females constantly Towards the start of laying, males increased their vigilance by reducing their feedi[...]

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