Ramphastos

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Ramphastos
Choco toucan.jpg
Choco toucan
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Piciformes
Family: Ramphastidae
Genus: Ramphastos
Linnaeus, 1758
Species

See text.

Synonyms
  • Rhamphastos

Ramphastos is a genus of toucans, tropical and subtropical near passerine birds from Mexico, and Central and South America, which are brightly marked and have enormous, often colourful, bills.[1]

Taxonomy and systematics[edit]

See also List of Ramphastos species and subspecies.

Extant species[edit]

The genus Ramphastos has eight species considered to belong to the genus:[2]

Former species[edit]

Some authorities, either presently or formerly, recognize additional species or subspecies as species belonging to the genus Ramphastos including:

Description[edit]

This genus comprises the largest toucans, ranging from 42 to 61 centimetres (17 to 24 in) in length.[1] All have black wings, tails and thighs, but the colour of the remaining plumage depends on the exact species involved.

Diversity of bills[edit]

Distribution and habitat[edit]

They are essentially resident birds, but may take part in minor, local movements (e.g., to lower altitudes in the winter).[1]

Behaviour and ecology[edit]

Breeding[edit]

They are arboreal and nest in tree holes laying 2–4 white eggs.

Food and feeding[edit]

All the species are basically fruit-eating, but will take insects and other small prey.[1]

Threats[edit]

The ischnoceran louse Austrophilopterus cancellosus is suspected to parasitize all species of Ramphastos toucans. Its presence has been confirmed on all species except the citron-throated toucan.[9]

References[edit]

  1. ^ a b c d 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
  2. ^ "Jacamars, puffbirds, toucans, barbets & honeyguides « IOC World Bird List". www.worldbirdnames.org. Retrieved 2016-12-31. 
  3. ^ "Pteroglossus viridis - Avibase". avibase.bsc-eoc.org. Retrieved 2016-12-26. 
  4. ^ "Pteroglossus azara - Avibase". avibase.bsc-eoc.org. Retrieved 2016-12-26. 
  5. ^ "Pteroglossus aracari - Avibase". avibase.bsc-eoc.org. Retrieved 2016-12-26. 
  6. ^ "Pteroglossus aracari atricollis - Avibase". avibase.bsc-eoc.org. Retrieved 2016-12-26. 
  7. ^ "Pteroglossus torquatus - Avibase". avibase.bsc-eoc.org. Retrieved 2016-12-26. 
  8. ^ "Pteroglossus bailloni - Avibase". avibase.bsc-eoc.org. Retrieved 2016-12-27. 
  9. ^ 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

External links[edit]