Waterfowl are certain wildfowl of the order Anseriformes, especially members of the family Anatidae, which includes ducks, geese, and swans. They're strong swimmers with medium to large bodies. They've historically been an important food source, and continue to be hunted as game, or raised as poultry for meat and eggs. The domestic duck's sometimes kept as a pet. Some definitions of the term 'waterfowl' include the saltwater shorebirds or waders, gulls, pelicans, and herons, as well as seab… (More on Waterfowl)