|Guianan puffbird at Manaus, Amazonas state, Brazil|
The Guianan puffbird (Notharchus macrorhynchos) is a species of puffbird in the family Bucconidae. It is found in forest and woodland in north-eastern South America (and named after The Guianas), in far eastern Venezuela, north-eastern Brazil, Guyana, Suriname and French Guiana. It formerly included the white-necked puffbird (now N. hyperrhynchus) as a subspecies. The two differ markedly in bill size (N. hyperrhynchus larger-billed than N. macrorhynchos), plumage (among other things, N. hyperrhynchus has less black to the flanks and more white to the forecrown than N. macrorhynchos), and voice. Consequently, the two were separated by SACC in 2004. As presently defined, the Guianan puffbird is monotypic.
- BirdLife International (2012). "Notharchus macrorhynchos". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Split Notharchus hyperrynchus from N. macrorhynchos. South American Classification Committee. Accessed 2008-08-07
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