Duck, any of different types of moderately little, short-necked, huge charged waterfowl. In evident ducks—i.e., those characterized in the subfamily Anatinae in the waterfowl family Anatidae—the legs are put rearward, as in swans, as opposed to advance, as in geese. The outcome is an unmistakable waddling walk. Most obvious ducks, including a couple of incorrectly called geese (e.g., sheldgeese) by reason of size and construct, additionally contrast from swans and genuine geese in the accompanying attributes: guys (drakes) and females (hens or ducks) display some level of separation in plumage and in call, guys shed twice yearly, females lay huge grips of smooth-shelled as opposed to harsh shelled eggs, and both genders have covering scales on the skin of the leg. The wild mallard (Anas platyrhynchos) is accepted to be the predecessor of every single residential duck, and it has experienced various crossbreedings and changes since it was first trained in China somewhere in the range of 2,000 and 3,000 years prior.
Every single genuine duck, aside from those in the shelduck gathering (the clan Tadornini) and ocean ducks (the clans Mergini and Somateriini), develop in the main year and pair just for the season—not at all like the late-developing, life-mating genuine geese and swans. Ducks are commonly separated into three noteworthy gatherings, fiddling (shallow-water), jumping, and roosting ducks, in light of their trademark practices. The mallard, a normal dallying duck (any of around 38 types of Anas and around 5 species in other genera), is a standout amongst the most famous game feathered creatures.
Pintails, blue-greens, shovelers, and wigeons are additionally fiddling ducks characterized in Anas, notwithstanding the gadwall (A. strepera) and the dark ducks (A. sparsa, A. rubripes, and A. superciliosa). Roosting ducks, for example, the muscovy (Cairina moschata), the wood duck (Aix sponsa), and the mandarin duck (Aix galericulata) have long paws and are the most arboreal of ducks, frequently perching in trees. The plunging ducks (or ocean ducks) incorporate the best number of marine species, for example, eiders (which are differently delegated individuals from the clan Mergini or put in a different clan Somateriini) and scoters (Melanitta), yet they additionally incorporate principally freshwater species, for example, mergansers (Mergus and Lophodytes), the ring-necked duck (Aythya collaris), and the pochards (Aythya and Netta), including the scaups (A. marila, A. affinis, and A. novaeseelandiae) and the canvasback (A. valisineria). The redhead (A. History of the U.S), the goldeneye (Bucephala clangula and B. islandica), and the bufflehead (B. albeola) are plunging ducks that live in crisp and salt water, contingent upon the season. Individuals from the stifftail gathering, encapsulated by the blue-charged bronzed duck (Oxyura jamaicensis), are exceptionally sea-going plunging ducks described by legs set far toward the back of the body. The whistling ducks (Dendrocygna), likewise called tree ducks, are false ducks but rather are all the more firmly identified with geese and swans. Ducks that are excluded in those bigger gatherings are the freckled duck (Stictonetta naevosa) and the deluge duck (Merganetta armata), just as the shelducks (Tadorna) and the steamer ducks (Tachyeres). All ducks, geese, and swans have a place with the family Anatidae. For a progressively point by point grouping, see anseriform.
Duck raising is polished on a constrained scale in many nations, as a rule as a little ranch undertaking, albeit enormous groups are reproduced in certain regions of England, the Netherlands, and the United States. The American Poultry Association records 17 tamed breeds, separated into four classes: overwhelming, medium, lightweight, and small. The White Pekin, initially from China, is the most generally brought duck up in the United States, since it is substantial, quickly developing, and tremendous in egg generation. Duck plumes are additionally of some esteem, however they have been to a great extent supplanted by synthetics. Eiderdown, the down plumes of the basic eider (Somateria mollissima), are still of wide business esteem for use in extravagance blankets and pads.