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Intra-specific nest parasitism in Black-headed Gull Larus ridibundus

N. Duda, Auteur ; W. Chetnicki, Auteur ; P. Jadwiszczak, Auteur

Dans Ardea (91(1) SPR 2003)

Intra-specific nest parasitism in Black-headed Gull is reported based on several lines of indirect evidence. The within-clutch egg size asymmetry seems to be a component of protective mechanism against parasitism. Results of our observations and[...]

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