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 Nymphicinae Astuti, 2004
see Subfamily Cacatuinae del Hoyo et al., 2014
1 Genus Nymphicus Wagler, 1832
2 Genus Nestor Lesson, 1830