The black-backed thornbill (Ramphomicron dorsale) is a species of hummingbird in the family Trochilidae. It is found in the Sierra Nevada de Santa Marta. The species is currently endangered due to threats such as logging and forest fires.
Its call is described as short "“trrr” sounds.
- BirdLife International (2012). "Ramphomicron dorsale". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. doi:10.2305/iucn.uk.2016-3.rlts.t22687987a93178424.en. Retrieved 26 May 2019.
- "Black-backed Thornbill (Ramphomicron dorsale)". www.hbw.com. Retrieved 26 May 2019.
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