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Résumé :
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Ship surveys in the Pomeranian Bight, southern Baltic Sea, revealed an offshore summer occurrence of Black and Velvet Scoters on the Oderbank. Population sizes were estimated to be 110,000 to 220,000 Black Scoters for July to September 2003 and June 2004. In summer 2003 we also observed moulting birds. Their percentage varied between 0.2% (September) and 32% (August) of all Black Scoters. Velvet Scoters were present with about 260 individuals from July to September 2003, including four moulting birds in July, but with only five individuals in total in June 2004. The Oderbank is an important summer and moulting site for Black Scoters and probably the southernmost summer and perhaps even moulting area for Velvet Scoters. A special protection status is required to conserve this unique habitat in the German Baltic Sea.
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