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2 more mergansers aren't in the genus, Mergus:
Hooded (Lophodytes cucullatus) and the Smew (Mergellus albellus)
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This fancy gentleman is a smew. He's a duck, and more specifically, a merganser. But instead of being in the Mergus genus, he's all by himself in the diminutive genus, Mergellus. #DuckBiology
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If nothing else, it's an excuse to repost my pics (by Andrea Boscolo)
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