|Channel-billed Toucan Ramphastos ariel
(aka Channel-billed Toucan Ramphastos vitellinus ariel)
|Caxiuanã, Pará, Brazil
The Ariel Toucan is distributed south of the Amazon and east of the rio Tapajós in Pará, Maranhão and Piauí with a disjunct population in eastern Brazil. It is found in primary forest of various types but rarely seen in secondary growth.
|The taxonomy of this species is quite complicated but the HBW and Birdlife International Checklist recognise it as a separate, monotypic species. That said, recent research (Weckstein, J. D. 2004. "Biogeography explains cophylogenetic patterns in toucan chewing lice". Systematic Biology 53: 154-164) has found that the Amazonian population is only distantly related to that of the Atlantic Rain Forest so maybe there is another sub-species about to be described.|
|It is a member of the croaking group of toucans.|