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Difference between revisions of "Torrent Duck" - BirdForum Opus

(Clearer image of pair. References updated)
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Small streamlined duck with rubbery red bill and long stiff tail.<br />
 
Small streamlined duck with rubbery red bill and long stiff tail.<br />
 
'''Male''': head and neck white; crown and stripe down hindneck black; black line from eye down side of neck, rest of upperparts blackish more or less streaked tawny and gray, underparts white lightly streaked gray; green wing speculum bordered white (hard to see).<br />
 
'''Male''': head and neck white; crown and stripe down hindneck black; black line from eye down side of neck, rest of upperparts blackish more or less streaked tawny and gray, underparts white lightly streaked gray; green wing speculum bordered white (hard to see).<br />
[[Image:T duck.jpg|thumb|350px|right|Female<br />Photo by {{user|nick+scarle|nick scarle}}<br />San Isidro, [[Ecuador]], August 2008]]
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[[Image:T duck.jpg|thumb|350px|right|Female, subspecies ''colombiana''<br />Photo by {{user|nick+scarle|nick scarle}}<br />San Isidro, [[Ecuador]], August 2008]]
 
'''Female''' very different: crown and hindneck blue gray, rest of upperparts like male; sides of head and entire underparts orange cinnamon.
 
'''Female''' very different: crown and hindneck blue gray, rest of upperparts like male; sides of head and entire underparts orange cinnamon.
 
==Distribution==
 
==Distribution==
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==Behaviour==
 
==Behaviour==
 
====Breeding====
 
====Breeding====
[[Image:Torrent Duck ducklings.jpg|thumb|350px|right|Female with 2 ducklings<br />Photo by {{user|JWN+Andrewes|JWN Andrewes}}<br />Quipucuna, Pichincha, [[Ecuador]], 1989 ]]
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[[Image:Torrent Duck ducklings.jpg|thumb|350px|right|Female with 2 ducklings, subspecies ''colombiana''<br />Photo by {{user|JWN+Andrewes|JWN Andrewes}}<br />Quipucuna, Pichincha, [[Ecuador]], 1989 ]]
 
It nests in waterside caves.
 
It nests in waterside caves.
 
====Diet====
 
====Diet====

Revision as of 11:33, 27 February 2017

Male right, female left, subspecies leucogenis
Photo by Steve Sanchez
Aguas Calientes, Machu Picchu, Cusco, Peru, November 2014
Merganetta armata

Identification

43-46cm
Small streamlined duck with rubbery red bill and long stiff tail.
Male: head and neck white; crown and stripe down hindneck black; black line from eye down side of neck, rest of upperparts blackish more or less streaked tawny and gray, underparts white lightly streaked gray; green wing speculum bordered white (hard to see).

Female, subspecies colombiana
Photo by nick scarle
San Isidro, Ecuador, August 2008

Female very different: crown and hindneck blue gray, rest of upperparts like male; sides of head and entire underparts orange cinnamon.

Distribution

South America: found in Colombia, Venezuela, Ecuador, Peru, Bolivia, Chile, Argentina and Tierra del Fuego.

Taxonomy

Subspecies

Male, subspecies colombiana
Photo by Robert Scanlon
Colombia

There are 6 subspecies[1]:

  • M. a. colombiana:
  • M. a. leucogenis:
  • Andes of central and southern Ecuador and Peru
  • M. a. turneri:
  • Andes of southern Peru (Cuzco and Arequipa)
  • M. a. garleppi:
  • M. a. berlepschi:
  • M. a. armata:
  • Andes of Chile and adjacent Argentina south to Tierra del Fuego

An additional subspecies fraenata is generally considered invalid[2].

Habitat

Fast flowing mountain rivers. Observed at heights of 8700 ft.

Behaviour

Breeding

Female with 2 ducklings, subspecies colombiana
Photo by JWN Andrewes
Quipucuna, Pichincha, Ecuador, 1989

It nests in waterside caves.

Diet

The diet includes invertebrates.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2016. The eBird/Clements checklist of birds of the world: v2016, with updates to August 2016. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. BF Member observations

Recommended Citation

External Links

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