The genus Pezoporus contains two Australian species: the Night Parrot (Pezoporus occidentalis) and the Ground Parrot (Pezoporus wallicus). It is the only genus in the tribe Pezoporini. The closest relative is the Budgerigar (Melopsittacus undulatus) Christidis, L., Schodde, R., Shaw, D.D. & Maynes, S.F. 1991. Relationships among the Australo-Papuan Parrots, Lorikeets, and Cockatoos (Aves, Psittaciformes) - Protein Evidence. Condor 93: 302-317.Leeton, P.R.J., Christidis, L., Westerman, M. & Boles, W.E. (1994). Molecular phylogenetic relationships of the Night Parrot (Geopsittacus occidentalis) and the Ground Parrot (Pezoporus wallicus). Auk 111: 833-843.

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