This taxon is Not Recognised as a species by BirdLife International.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Ramphastos vitellinus, R. culminatus and R. ariel (del Hoyo and Collar 2014) were previously lumped as R. vitellinus following SACC (2006) and a review by the BirdLife Taxonomic Working Group, and before then were split as R. vitellinus, R. culminatus and R. citreolaemus following Sibley and Monroe (1990, 1993).
BirdLife International (2014) Species factsheet: Ramphastos vitellinus. Downloaded from http://www.birdlife.org on 29/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/08/2014.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
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|Current IUCN Red List category||Not Recognised|
|Species name author||Lichtenstein, 1823|