Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Anseriformes Wagler, 1831 - waterfowl and screamers
                   Family Anatidae Vigors, 1825 - ducks, geese, swans
                     Subfamily Anatinae Vigors, 1825 - pond ducks
                       Tribe Anatini Vigors, 1825 - typical ducks see Subfamily Anatinae Vigors, 1825
                         1 Genus Anas Linnaeus, 1758 - Pacific black duck
                         2 Genus ‡Rhodonessa Reichenbach, 1853
                         3 Genus Merganetta Gould, 1842
                         4 Genus Malacorhynchos Bonaparte, 1854 see Genus Malacorhynchus Swainson, 1831
                         5 Genus Hymenolaimus Gray, 1843
                         6 Genus Stictonetta Reichenbach, 1853 - freckled duck