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Crested Duck - BirdForum Opus

Revision as of 22:57, 25 September 2017 by Deliatodd-18346 (talk | contribs) (Picture of male, subspecies. Picture showing male and female nominate subspecies. Imp sizes. References updated)
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Male, subspecies alticola
Photo by Stanley Jones
Laguna Huacracocha, Junín, Peru, August 2017
Lophonetta specularioides

Anas specularioides

Identification

Female on left, male on right, Nominate subspecies
Photo by Dave Clark
Stanley Harbor, Falkland Islands, January 2012

51–61 cm (20-24 in)

  • Large
  • Short crest produces a specific head shape when seen from the side
  • Pale brown
  • Flanks have marbled appearance
  • Red iris in nominate, orange to yellow in alticola
  • Bill dark gray
  • Grey legs
  • Wings with white speculum, in front of that a black stripe, and in front of that a violet band

Sexes similar but females are darker than the male.

Distribution

South America: found in Peru, Bolivia, Chile, Argentina and the Falkland Islands.

Taxonomy

Subspecies

Lophonetta specularioides has two subspecies:1

  • L. s. alticola
  • L. s. specularioides

Habitat

Mostly freshwater, lakes and ponds; in the south at sea level but in northern populations in Andean highland wetlands and lakes. Altitudinal migrant in some areas.

Behaviour

Diet

Their main diet consists of insects and their larvae, and molluscs. They also eat some plants and algae.

Breeding

They build their nest in shrubs near to water. The clutch consists of 5-7 eggs.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Alvaro Jaramillo. 2003. Birds of Chile. Princeton Field Guides. ISBN 0-691-11740-3
  3. Wikipedia
  4. Arthur Grosset
  5. Handbook of the Birds of the World Alive (retrieved Sept 2017)

Recommended Citation

External Links

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