The most common duck meat consumed in the United States is the Pekin duck. Because most commercially raised Pekins come from Long Island, New York, Pekins are also sometimes called “Long Island” ducks, despite being of Chinese origin. Some specialty breeds have become more popular in recent years, notably the Muscovy duck, and the Mulard duck (a sterile hybrid of Pekins and Muscovies). Unlike most other domesticated ducks, Muscovy ducks are not descended from mallards.
Duck meat is derived primarily from the breasts and legs of ducks. The meat of the legs is darker and somewhat fattier than the meat of the breasts, although the breast meat is darker than the breast meat of a chicken or a turkey. Being waterfowl, ducks have a layer of heat-insulating subcutaneous fat between the skin and the meat. De-boned duck breast can be grilled like steak, usually leaving the skin and fat on. Magret refers specifically to the breast of a mulard or Barbary duck that has been force fed to produce foie gras. Internal organs such as heart and kidneys may also be eaten; the liver in particular is often used as a substitute for goose liver in foie gras.