Molecular Biology and Genetics
Statistics of barcoding coverage
|Specimen Records:||39||Public Records:||17|
|Specimens with Sequences:||31||Public Species:||5|
|Specimens with Barcodes:||31||Public BINs:||5|
|Species With Barcodes:||6|
This genus comprises the largest toucans, ranging from 42 to 61 centimetres (17 to 24 in) in length. All have black wings, tails and thighs, but the colour of the remaining plumage depends on the exact species involved. All the species are basically fruit-eating, but will take insects and other small prey. They are arboreal and nest in tree holes laying 2–4 white eggs. They are essentially resident birds, but may take part in minor, local movements (e.g., to lower altitudes in the winter).
Species list 
- Keel-billed Toucan, Ramphastos sulfuratus
- Choco Toucan, Ramphastos brevis
- Channel-billed Toucan, Ramphastos vitellinus
- Green-billed Toucan, Ramphastos dicolorus
- Black-mandibled Toucan, Ramphastos ambiguus
- White-throated Toucan, Ramphastos tucanus
- Toco Toucan, Ramphastos toco
Diversity of toucan bills 
- Short, L. L., & Horne, J. F. M. (2002). Toucans (Ramphastidae). pp. 220-272 in del Hoyo, J., Elliott, A., & Sargatal, J. eds. (2002). Handbook of the Birds of the World. Vol. 7 Jacamars to Woodpecker. Lynx Edicions, Barcelona. ISBN 84-87334-37-7
- Price, Roger D. & Weckstein, Jason D. (2005). The genus Austrophilopterus Ewing (Phthiraptera: Philopteridae) from toucans, toucanets, and araçaris (Piciformes: Ramphastidae). Zootaxa 918: 1-18. PDF fulltext
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