Collar, N.J. (1997). "Family Psittarcidae (Parrots)". In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World. Vol. 4: Sandgrouse to Cuckoos. Barcelona, Spain: Lynx Edicions. pp. 280–479 [287, 419]. ISBN978-84-87334-22-1.
Savage, James L.; Digby, Andrew (2023). "Strigops habroptilus Gray, 1845 is the valid scientific name of the kākāpō (Aves, Strigopidae)". The Bulletin of Zoological Nomenclature. 80 (1): 112–115. doi:10.21805/bzn.v80.a032.
Hagelin, Julie C. (2004). "Observations on the olfactory ability of the kakapo Strigops habroptilus, the critically endangered parrot of New Zealand". Ibis. 146 (1): 161–164. doi:10.1111/j.1474-919X.2004.00212.x.
Livezey, Bradley C. (1992). "Morphological corollaries and ecological implications of flightlessness in the kakapo (Psittaciformes: Strigops habroptilus)". Journal of Morphology. 213 (1): 105–145. doi:10.1002/jmor.1052130108. PMID29865598. S2CID206090256.
Lentini, P.E.; Stirnemann, I.A.; Stojanovic, Dejan; Worthy, Trevor H.; Stein, J.A. (2018). "Using fossil records to inform reintroduction of the kakapo as a refugee species". Biological Conservation. 217: 157–165. Bibcode:2018BCons.217..157L. doi:10.1016/j.biocon.2017.10.027.
Powlesland, R. G.; Lloyd, B. D.; Best, H. A.; Merton, D. V. (1992). "Breeding biology of the kakapo Strigops habroptilus on Stewart Island, New Zealand". Ibis. 134 (4): 361–373. doi:10.1111/j.1474-919X.1992.tb08016.x.
Cockrem, J. F. (2002). "Reproductive biology and conservation of the endangered kakapo (Strigops habroptilus) in New Zealand". Avian and Poultry Biology Reviews. 13 (3): 139–144. doi:10.3184/147020602783698548.
Lloyd, B.D.; Powlesland, R.G. (1994). "The decline of kakapo Strigops habroptilus and attempts at conservation by translocation". Biological Conservation. 69 (1): 75–85. Bibcode:1994BCons..69...75L. doi:10.1016/0006-3207(94)90330-1.
Lentini, P.E.; Stirnemann, I.A.; Stojanovic, Dejan; Worthy, Trevor H.; Stein, J.A. (2018). "Using fossil records to inform reintroduction of the kakapo as a refugee species". Biological Conservation. 217: 157–165. Bibcode:2018BCons.217..157L. doi:10.1016/j.biocon.2017.10.027.
Lloyd, B.D.; Powlesland, R.G. (1994). "The decline of kakapo Strigops habroptilus and attempts at conservation by translocation". Biological Conservation. 69 (1): 75–85. Bibcode:1994BCons..69...75L. doi:10.1016/0006-3207(94)90330-1.
Livezey, Bradley C. (1992). "Morphological corollaries and ecological implications of flightlessness in the kakapo (Psittaciformes: Strigops habroptilus)". Journal of Morphology. 213 (1): 105–145. doi:10.1002/jmor.1052130108. PMID29865598. S2CID206090256.
Higgins 1999, p. 633. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 637. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, pp. 639, 641. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 638. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 643. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 640. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Livezey, Bradley C. (1992). "Morphological corollaries and ecological implications of flightlessness in the kakapo (Psittaciformes: Strigops habroptilus)". Journal of Morphology. 213 (1): 105–145. doi:10.1002/jmor.1052130108. PMID29865598. S2CID206090256.
Higgins 1999, p. 633. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 637. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, pp. 639, 641. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 638. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 643. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.
Higgins 1999, p. 640. Higgins, P.J., ed. (1999). "Strigops habroptilus Kakapo"(PDF). Handbook of Australian, New Zealand & Antarctic Birds. Vol. 4: Parrots to Dollarbird. Melbourne, Victoria: Oxford University Press. pp. 633–646. ISBN978-0-19-553071-1. Archived from the original(PDF) on 17 June 2024. Retrieved 10 June 2023.