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Organism
  Animalia
      Chordata
        Vertebrata
          Amniota
            Aves
                    Anseriformes
                            Anatidae
                              Anatinae
                                     Anas
                                             Anas andium
                                             Anas bahamensis
                                             Anas flavirostris
                                               Anas flavirostris subsp. andium
                                                     [Anas andium]
                                     Cairina
                                             Cairina moschata
                                     Clangula
                                             Clangula hyemalis
                                     Oxyura
                                             Oxyura jamaicensis
                              Dendrocygninae
                                     Dendrocygna
                                             Dendrocygna autumnalis
                                     Oressochen
                                             Oressochen jubatus
                                     Spatula
                                             Spatula discors
                              Tadorninae
                                     Merganetta
                                             Merganetta armata
                                     Sarkidiornis
                                             Sarkidiornis melanotos
                                               Sarkidiornis melanotos subsp. sylvicola
                                                     [Sarkidiornis sylvicola]
                                             Sarkidiornis sylvicola