Phylogenetic Tree of Anseriformes Mergansers Long-tailed duck Velvet scoter Goldeneyes Harlequin duck Ruddy duck Genus Oxyura Common eider Diving ducks Tufted duck Genus Aix Pygmy geese Dabbling ducks Northern pintail Mallard Common pochard Hartlaub's duck White-winged wood duck Knob-billed duck Flying Steamer-Duck Muscovy duck Spur-winged goose Common shelduck Tribe Tadornini Shelducks Coscoroba swan Greater white-fronted goose Sheldgeese Cape Barren goose Bar-headed goose Geese Swan goose Гуси, Лебеди Red-breasted goose White-faced whistling duck Freckled duck Black geese Whistling ducks Barnacle goose Magpie goose Black-necked swan Southern screamer Swans Mute swan Black swan Flying Steamer-Duck Magpie geese Anserinae Anatidae Torrent duck