At Lake Worth I saw a gentleman feed Scaup Ducks that swam to within two yards of his boat.
"The Bird Study Book" by Thomas Gilbert Pearson
The Scaup Duck is very abundant in Holland during winter, covering the inland seas with immense flocks.
"British Birds in their Haunts" by Rev. C. A. Johns
The daily bag limit on ducks is six and may include no more than four mallards (no more than two of which may be females), two pintails, one canvasback, one mottled duck, one black duck, three wood ducks, two scaup and two redheads.
Wilson, naturespicsonline Lesser scaup ducks, common migrants and winter residents on Tennessee's ponds, lakes and rivers, often arrive in large flocks.
Although male ring -necked ducks superficially resemble their counterparts in greater and lesser scaup, their peaked, angular head profile, distinctive white bill markings and uniformly dark upper wings distinguish them.