BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.
Collar, N., Kirwan, G.M. and Sharpe, C.J. 2015. Sulu Racquet-tail (Prioniturus verticalis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. and de Juana, E. (eds), Handbook of the Birds of the World Alive, Lynx Edicions, Barcelona.
IUCN. 2017. The IUCN Red List of Threatened Species. Version 2017-3. Available at: https://www.iucnredlist.org. (Accessed: 5 December 2017).
IUCN. 2018. The IUCN Red List of Threatened Species. Version 2018-2. Available at: https://www.iucnredlist.org. (Accessed: 15 November 2018).
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Recommended citation
BirdLife International (2024) Species factsheet: Sulu Racquet-tail Prioniturus verticalis. Downloaded from
https://datazone.birdlife.org/species/factsheet/sulu-racquet-tail-prioniturus-verticalis 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.