Groove-billed ani (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Groove-billed ani" in English language version.

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2^nd place

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1iucnredlist.org

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1biodiversitylibrary.org

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1worldbirdnames.org

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1web.archive.org

1^st place

1^st place

biodiversitylibrary.org

Swainson, William John (1827). "A synopsis of the birds discovered in Mexico by W. Bullock, F.L.S. and Mr. William Bullock jun". Philosophical Magazine. New Series. 1: 364–369, 433–442 [440]. doi:10.1080/14786442708674330.

doi.org

BirdLife International (2016). "Crotophaga sulcirostris". IUCN Red List of Threatened Species. 2016: e.T22684438A93029765. doi:10.2305/IUCN.UK.2016-3.RLTS.T22684438A93029765.en. Retrieved 13 November 2021.
Swainson, William John (1827). "A synopsis of the birds discovered in Mexico by W. Bullock, F.L.S. and Mr. William Bullock jun". Philosophical Magazine. New Series. 1: 364–369, 433–442 [440]. doi:10.1080/14786442708674330.

fws.gov

MBTA Alpha List Archived 2007-10-10 at the Wayback Machine

iucnredlist.org

BirdLife International (2016). "Crotophaga sulcirostris". IUCN Red List of Threatened Species. 2016: e.T22684438A93029765. doi:10.2305/IUCN.UK.2016-3.RLTS.T22684438A93029765.en. Retrieved 13 November 2021.

web.archive.org

MBTA Alpha List Archived 2007-10-10 at the Wayback Machine

worldbirdnames.org

Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2021). "Turacos, bustards, cuckoos, mesites, sandgrouse". IOC World Bird List Version 11.1. International Ornithologists' Union. Retrieved 24 June 2021.