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Discriminating between Eggs of Herring Gulls (Larus argentatus) and Great Black-backed Gulls (Larus marinus) in Eastern Canada

Antony W. Diamond, Auteur ; Catherine Otorowski, Auteur

Dans Waterbirds (39(2) APR 2016)

Distinguishing among eggs of large gull species in mixed colonies is difficult because egg size is variable, size ranges overlap and colors are similar. Regional and yearly differences in egg size of Herring Gulls (Larus argentatus) were compare[...]

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