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Greater Scaup (Aythya marila) Mallard (Anas ...
, Iceland. I've been looking at the bird species and i think they are
Lesser scaup drake sighted at Bolsa Chica ...
Hoping someone can help me determine whether this is Greater or Lesser
The slight tuft on the back of the head distinguishes this from a Greater
The Greater Scaup is found primarily along ...
Male identified by blue bill, purplish tint to head and shape of head