The Ducks are of two sorts, either wild or tame. The Wild Ducks comprise
two groups—the Sea Ducks, which feed mostly in salt waters, dive much in
feeding, and have a very broad bill; and the Pond Ducks, which have a
straight and narrow bill; these generally frequent the fresh water, but
pass much of their time on land, feeding on aquatic plants, Insects,
Worms and sometimes Fish.
The first division comprises the Shieldrake, Muscovy Duck, Gadwall,
Shoveller, Pintail, Widgeon, Bimaculated Duck, Garganey and Teal. The
second division includes the Red-crested Duck, Pochard, Ferruginous
Duck, Scaup, Tufted Duck, Harlequin Duck, Long-tailed Duck, and Golden
Eye; while between the two divisions are placed (as possessing some of
the characteristics of each) the Eider Duck, King Duck, Velvet Duck and
Scoter.