Phylum Chordata Bateson, 1885 - chordates
Class Aves Linnaeus, 1758 - birds
see Subclass Aves Linnaeus, 1758
Subclass Neornithes Gadow, 1893
see Clade Neornithes Gadow, 1893
Superorder Neognathae Pycraft, 1900
see Cohort Neognathae Pycraft, 1900
Order Psittaciformes Wagler, 1830 - parrots
Family Psittacidae Illiger, 1811 - cockatoos and parrots
Subfamily Strigopinae Bonaparte, 1849
Genus Strigops Gray, 1845
Strigops habroptilus G.R. Gray, 1845 - kakapo
see Strigops habroptila Gray, 1845