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The scaup duck.

e numbers on the eastern coast of the United States, in autumn; - - called also bluebill, blackhead, raft duck, and scaup duck. See Scaup duck.

encircles the neck. This ring is absent in the female. Called also ring-neck, ring-necked blackhead, ringbill, tufted duck, and black jack.

The ring-necked scaup duck; -- called also ring-billed blackhead. See Scaup.

the greater scaup duck (Aythya marila, var. nearctica), called also broadbill, bluebill, blackhead, flock duck, flocking fowl, and raft duck; the lesser scaup duck (A. affinis), called also little bluebill, river broadbill, and shuffler; the tufted, or ring-necked, scaup duck (A. collaris), called also black jack, rin…

The blackheaded pewit, and other gulls.