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 Psittaciformes Wagler, 1830 - parrots
                   Family Psittacidae Illiger, 1811 - cockatoos and parrots
                     Subfamily Cacatuinae del Hoyo et al., 2014 see Family Cacatuidae Gray, 1840
                       Genus Cacatua Vieillot, 1817
                         1 Cacatua galerita (Latham, 1790) - sulphur-crested cockatoo
                         2 Cacatua sulphurea (Gmelin, 1788) - yellow-crested cockatoo
                         3 Cacatua moluccensis (Gmelin, 1788) - salmon-crested cockatoo
                         4 Cacatua leadbeateri (Vigors, 1831) - pink cockatoo
                         5 Cacatua roseicapilla Vieillot, 1817 see Eolophus roseicapilla (Vieillot, 1817)
                         6 Cacatua sanguinea Gould, 1843 - little cockatoo
                         7 Cacatua tenuirostris (Kuhl, 1820) - long-billed corella
                         8 Cacatua alba (Statius Müller, 1776) - white cockatoo