Listed by date
Hutching, Gerard, 1998. The Natural World of New Zealand. Viking, Penguin Books (NZ) Ltd. pp 169-172.
Climo, G. & Ballance, A. 1997. Hoki – the story of a kākāpō. Godwit Publishing.
Heather, B. & Robertson, H. 1996. Field Guide to the Birds of New Zealand. Viking.
Morris, R. and Smith, H. 1995. Wild South: Saving New Zealand’s Endangered Birds. 2nd ed. TVNZ and Random House NZ Ltd.
Gaze, P. 1994. Rare and Endangered New Zealand Birds: Conservation and Management. Canterbury University Press.
Adams, D. & Cawardine, M. 1990. Last Chance to See. Heinemann.
Butler, D. 1989. Quest for the Kākāpō. Heinemann Reed.
Forshaw, J.M. & Cooper, W.T. 1989. Parrots of the World. 3rd (revised) ed. Lansdowne Press. pp 296-299.
Cemmick, D. & Veitch, D. 1987. Kākāpō Country: the story of the world’s most unusual bird. Hodder & Stoughton.
Best, H.A. & Powlesland, R.G. 1985. Kākāpō. J. McIndoe & New Zealand Wildlife Service.
Merton, D.V. 1985. in Robertson, C.J.R. (ed.) Reader’s Digest Complete Book of New Zealand Birds.Sydney: Reader’s Digest Services. pp 242-243.
King, C.M. 1984. Immigrant Killers: introduced predators and the conservation of birds in New Zealand.Oxford University Press.
Turbott, E.G. 1967. Buller’s Birds of New Zealand. Whitcombe & Tombs Ltd.