Text extracted from Gill B.J.; Bell, B.D.; Chambers, G.K.; Medway, D.G.; Palma, R.L.; Scofield, R.P.; Tennyson, A.J.D.; Worthy, T.H. 2010. Checklist of the birds of New Zealand, Norfolk and Macquarie Islands, and the Ross Dependency, Antarctica. 4th edition. Wellington, Te Papa Press and Ornithological Society of New Zealand. Pages 249 & 251-252.

Order PSITTACIFORMES: Cockatoos, Parrots and Parakeets New molecular data and analyses support a view that the two subfamilies Strigopinae and Nestorinae form a single clade basal to all other Recent members of the order Psittaciformes (e.g. de Kloet & de Kloet 2005, Astuti et al. 2006, Tokita et al. 2007, Wright et al. 2008). They therefore need to be put in a family of their own (rather than in Psittacidae, e.g. Checklist Committee 1990) placed ahead of Cacatuidae in the systematic list. The name Strigopidae G.R. Gray, 1848 has priority.

Family *CACATUIDAE: Cockatoos and Allies Subfamily *CACATUINAE: White Cockatoos Cacatuinae G.R. Gray, 1840: List Gen. Birds (1st edition): 53 – Type genus Cacatua Vieillot, 1817.

Genus *Cacatua Vieillot Cacatua Vieillot, 1817: Nouv. Dict. Hist. Nat., nouv. éd. 17: 6 – Type species (by subsequent designation) Cacatua cristata Vieillot, 1817 = Cacatua alba (Statius Müller, 1776).

*Cacatua galerita (Latham) Sulphur-crested Cockatoo Psittacus galeritus Latham, 1790: Index Ornith. 1: 109 – Turramurra, New South Wales, Australia. Kakatoe galerita (Latham) subspecies; Checklist Committee 1953, Checklist N.Z. Birds: 54. Cacatua galerita (Latham); Checklist Committee 1970, Annot. Checklist Birds N.Z.: 57.

North, east and south-east Australia, around Perth in Western Australia, Tasmania, New Guinea and islands from the Moluccas to the Bismarck and Louisiade Archipelagos. Three subspecies. Probably introduced to New Zealand by escape from captivity (Thomson 1922), but possibly self-introduced (e.g. Martin & Bartlett 1963, Waller 1959). Established in the Turakina Valley, near Wanganui, ranging to Hunterville and Marton; in the lower Waikato–Raglan area; and in the Wellington area with a few scattered records from the South Island. The subspecies of the New Zealand birds has not been identified.