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Bird, J.P., Martin, R., Akçakaya, H.R., Gilroy, J., Burfield, I.J., Garnett, S.G., Symes, A., Taylor, J., Şekercioğlu, Ç.H. and Butchart, S.H.M. 2020. Generation lengths of the world’s birds and their implications for extinction risk. Conservation Biology 34(5): 1252-1261. DOI: 10.1111/cobi.13486.

del Hoyo, J., Elliott, A. and Sargatal, J. 1997. Handbook of the Birds of the World, Vol. 4: Sandgrouse to Cuckoos. Lynx Edicions, Barcelona, Spain.

Forshaw, J. M.; Cooper, W. T. 1989. Parrots of the world. Blandford Press, London.

Garnett, S.T., Szabo, J.K. and Dutson, G. 2011. The Action Plan for Australian Birds 2010. CSIRO Publishing, Collingwood.

Hume, J. 2017. Extinct Birds. Bloomsbury Publishing.

IUCN. 2023. The IUCN Red List of Threatened Species. Version 2023-1. Available at: https://www.iucnredlist.org. (Accessed: 07 December 2023).

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Recommended citation
BirdLife International (2024) Species factsheet: Norfolk Island Kaka Nestor productus. Downloaded from https://datazone.birdlife.org/species/factsheet/norfolk-island-kaka-nestor-productus on 26/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 26/12/2024.