Poultry, as defined by the American Poultry Association, includes chickens, bantam chickens, ducks, geese, turkeys, and guineas (American). The American Poultry Association, also known as the APA, mostly only includes domesticated species. In ducks the APA includes the mallard derived domesticated breeds, and the Muscovy species. As for geese the APA includes the domesticated breeds, the Canada goose, and the Egyptian Goose. For guineas the APA includes only the helmeted guineas. American Poultry Association Standardized turkeys include just the domesticated ones.