L. (2002): Birds of Venezuela. Weckstein, Jason D. (2005): Molecular Phylogenetics of the Ramphastos Toucans: Implications for the Evolution of Morphology, Vocalizations, and Coloration. Auk 122(4): 1191–1209. PDF fulltext. Erratum in Auk 123(2): 610 (2006). External links Channel-billed Toucan videos, photos & sounds on the Internet Bird Collection Toucan videos on the Internet Bird Collection Stamps (for Brazil, Colombia, France, French Guiana, Guyana, Suriname, Trinidad and Tobago) Channel-billed Toucan photo gallery VIREO channel-billed toucan Birds of the Amazon Basin Birds of the Guianas Birds of Trinidad and Tobago Birds of the Caribbean Birds of the Atlantic Forest channel-billed toucan Birds of Brazil