Kingdom [Animalia] Linnaeus, 1758 - animals
Count: -
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
  Count: -
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
    Count: -
       Subdivision Bilateralia
      Count: -
         Phylum Chordata Bateson, 1885 - chordates
        Count: -
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
          Count: -
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
            Count: 26o;153f;1626g;3765s;425ss;1v; ‡1f;17g;53s;12ss; †2f
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
              Count: 26o;153f;1626g;3765s;425ss;1v; ‡1f;17g;53s;12ss; †2f
                 Order Galliformes Temminck, 1820 - fowl
                Count: 4f;90g;153s;44ss; ‡1g;2s;1ss
                   Suborder Opisthocomi see Order Opisthocomiformes L'Herminer, 1837
                  Count: 1f;1g;1s
                     Family Opisthocomidae Swainson, 1837 - hoatzins
                    Count: 1g;1s
                       Genus Opisthocomus Illiger, 1811
                      Count: 1s
                         Opisthocomus hoazin (Statius Müller, 1776) - hoatzin
                        Count: -