Rufous-capped thornbill (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Rufous-capped thornbill" in English language version.

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birdlife.org

HBW and BirdLife International (2020) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip [.xls zipped 1 MB] retrieved 27 May 2021

BirdLife International (2016). "Rufous-capped Thornbill Chalcostigma ruficeps". IUCN Red List of Threatened Species. 2016: e.T22688024A93180595. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688024A93180595.en. Retrieved 23 February 2022.
Heindl, M. and P. F. D. Boesman (2020). Rufous-capped Thornbill (Chalcostigma ruficeps), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.ructho1.01 retrieved February 23, 2022

Stiles, Gary; Remsen, J.V. Jr. (November 2021). "Revise generic limits in the Lesbiini: A. Expand Oxypogon to include Oreonympha and Chalcostigma, and B. Modify linear sequence". South American Classification Committee of AOS. Retrieved February 23, 2022.
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 31 January 2022. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved February 1, 2022
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 31 January 2022. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved February 1, 2022

Gill, F.; Donsker, D.; Rasmussen, P., eds. (January 2022). "Hummingbirds". IOC World Bird List. v 12.1. Retrieved January 15, 2022.