Toucans are Neotropical members of the near passerine bird family Ramphastidae. The Ramphastidae are most closely related to the American barbets. They are brightly marked and have large, often colorful bills. The family includes five genera and over 40 different species.
Toucan
The lettered aracari is the smallest species of toucan.
The toco toucan is the largest species of toucan.
Spot-billed toucanets have smaller bills than Ramphastos toucans.
New World barbets are near passerine birds from the family Capitonidae of the order Piciformes, which inhabit humid forests in Central and South America. They are closely related to the toucans.
New World barbet
Head patterns of three species, constituting five races: 1. & 2. Eubucco versicolor, ♂♂ 3. & 5. Eubucco richardsoni, ♂♂ 4. & 6. Eubucco bourcierii, ♀♀ – by Keulemans, 1891