Letitia's thorntail (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Letitia's thorntail" in English language version.

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Global rank English rank

2^nd place

88^th place

160^th place

2,927^th place

2,249^th place

1,007^th place

1,255^th place

2,179^th place

1,991^st place

387^th place

373^rd place

biodiversitylibrary.org

Graves, G.R. (1999). "Taxonomic notes on hummingbirds (Aves: Trochilidae) 2. Popelairia letitiae (Bourcier & Mulsant, 1852) is a valid species". Proceedings of the Biological Society of Washington. 112 (4): 804–812. Retrieved January 24, 2022.

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 May 27, 2021

BirdLife International (2016). "Coppery Thorntail Discosura letitiae". IUCN Red List of Threatened Species. 2016: e.T22687265A93146232. doi:10.2305/IUCN.UK.2016-3.RLTS.T22687265A93146232.en. Retrieved 24 January 2022.
Züchner, T., P. F. D. Boesman, and C. J. Sharpe (2020). Coppery Thorntail (Discosura letitiae), 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.coptho2.01 retrieved January 24, 2022

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