BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.
Global Forest Watch. 2014. World Resources Institute. Accessed on November 2018.
IUCN. 2019. The IUCN Red List of Threatened Species. Version 2019-3. Available at: https://www.iucnredlist.org. (Accessed: 10 December 2019).
Tracewski, L.; Butchart, S. H. M.; Di Marco, M.; Ficetola, G. F.; Rondinini, C.; Symes, A.; Wheatley, H.; Beresford, A. E.; Buchanan, G. M. 2016. Toward quantification of the impact of 21st-century deforestation on the extinction risk of terrestrial vertebrates. Conservation Biology 30(5): 1070-1079.
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Recommended citation
BirdLife International (2024) Species factsheet: Nicobar Parakeet Psittacula caniceps. Downloaded from
https://datazone.birdlife.org/species/factsheet/nicobar-parakeet-psittacula-caniceps on 23/12/2024.
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 23/12/2024.