Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
       [Order] Anseriformes Wagler, 1831 - waterfowl and screamers
         Family Anatidae Vigors, 1825 - ducks, geese, swans
           Subfamily Dendrocygninae Reichenbach - tree-ducks
             Genus Dendrocygna Swainson, 1837 - wandering whistling-duck
               Dendrocygna autumnalis (Linnaeus, 1758) - black-bellied whistling duck
                 1 Dendrocygna autumnalis autumnalis (Linnaeus, 1758)
                 2 Dendrocygna autumnalis discolor Sclater & Salvin, 1873