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 Passeriformes Linnaeus, 1758
                   Suborder Oscines see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
                     Family Drepanididae - Hawaiian honeycreepers see Tribe Drepanidini
                       Subfamily Psittirostrinae see Subfamily Drepanidinae
                         Genus Psittirostra Temminck, 1820
                           1 Psittirostra psittacea (J.F. Gmelin, 1789) - 'o'u
                           2 Psittirostra cantans (Wilson, 1890) see Telespiza cantans Wilson, 1890
                           3 ‡Psittirostra palmeri (Rothschild, 1892) see Rhodacanthis palmeri Rothschild, 1892
                           4 ‡Psittirostra flaviceps (Rothschild, 1892) see Rhodacanthis flaviceps Rothschild, 1892
                           5 ‡Psittirostra kona (Wilson, 1888) see Chloridops kona S.B. Wilson, 1888