Plum-crowned parrot (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Plum-crowned parrot" in English language version.

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birdlife.org

HBW and BirdLife International (2022) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip retrieved December 13, 2022

Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of birds of the world: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ retrieved November 10, 2022

BirdLife International (2016). "Plum-crowned Parrot Pionus tumultuosus". IUCN Red List of Threatened Species. 2016: e.T22727615A94954391. doi:10.2305/IUCN.UK.2016-3.RLTS.T22727615A94954391.en. Retrieved 12 November 2021.
Ribas, C.C.; Moyle, R.G.; Miyaki, C.Y.; Cracraft, J. (2007). "The assembly of montane biotas: linking Andean tectonics and climate oscillations to independent regimes of diversification in Pionus parrots". Proceedings of the Royal Society B. 274 (1624): 2399–2408. doi:10.1098/rspb.2007.0613. PMC 2274971. PMID 17686731.
Collar, N., J. del Hoyo, P. F. D. Boesman, G. M. Kirwan, and A. Bonan (2022). Speckle-faced Parrot (Pionus tumultuosus), version 1.1. In Birds of the World (B. K. Keeney, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.spfpar1.01.1 retrieved February 27, 2023

Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 30 January 2023. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved January 30, 2023
Penhallurick, John (May 2005). "Split Pionus seniloides from Pionus tumultuosus". South American Classification Committee. Retrieved February 27, 2023.

Gill, F.; Donsker, D.; Rasmussen, P., eds. (January 2023). "Parrots, cockatoos". IOC World Bird List. v 13.1. Retrieved 18 February 2023.