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Difference between revisions of "Comb Duck" - BirdForum Opus

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[[Image:DSCN0860.JPG|thumb|550px|right|Photo by {{user|aloktewari|aloktewarii}} <br />[[Keoladeo National Park]], Bharatpur, Rajasthan, [[India]], July 2015]]
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[[Image:DSCN0860.JPG|thumb|550px|right|Photo by {{user|aloktewari|Alok Tewari}} <br />[[Keoladeo National Park]], Bharatpur, Rajasthan, [[India]], July 2015]]
 
;[[:Category:Sarkidiornis|Sarkidiornis]] melanotos
 
;[[:Category:Sarkidiornis|Sarkidiornis]] melanotos
 
'''Includes Knob-billed Duck'''
 
'''Includes Knob-billed Duck'''

Revision as of 02:54, 12 February 2017

Photo by Alok Tewari
Keoladeo National Park, Bharatpur, Rajasthan, India, July 2015
Sarkidiornis melanotos

Includes Knob-billed Duck

Identification

Female, Subspecies sylvicola
Photo by Stanley Jones
Jaén, Cajamarca, Peru, January 2017

American: 64–79 cm (25-31 in); African: 55–63 cm (21-25)

  • Glossy blue black upperparts
  • White underparts
  • Blue and green iridescent secondaries
  • White head with dark spots
  • White neck

Male - larger with large black knob on the bill
Juvenile

  • Dull buff underparts, face and neck
  • Dull brown upperparts, crown and eyestripe

Distribution

Sub-Saharan Africa, Madagascar, south Asia, Pakistan, Laos and extreme southern China.

Also eastern Paraguay, southeastern Brazil, northeast of Argentina.

Has been reported as a vagrant on Trinidad.

Taxonomy

Subspecies

Male, Subspecies melanotos
Photo by Rakesh
Pashan Pune, India, March 2007

There are 2 subspecies subspecies:[1]

  • S. m. melanotos
  • S. m. sylvicola

The species is sometimes split with sylvicola as Comb Duck and melanotos as Knob-billed Duck.

Habitat

Wetlands, freshwater swamps, rice fields and lakes.

Behaviour

Diet

The diet for both subspecies is mostly vegetarian, with grass, seeds and rice grain; supplemented with small fish and invertebrates.

Breeding

Male, Subspecies sylvicola
Photo by Stanley Jones
Jaén, Cajamarca, Peru, January 2017

They nest in tree holes and tall grass. The nest is lined with reeds, grass, or feathers. 7-15 yellowish-white eggs are laid; incubated by the female for about 30 days.

Gallery

Click on photo for larger image

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. Hockey, PAR, WRJ Dean, and PG Ryan, eds. 2005. Roberts' Birds of Southern Africa. 7th ed. Cape Town: John Voelcker Bird Book Fund. ISBN 978-0620340533
  3. Handbook of the Birds of the World Alive (retrieved June 2015)

Recommended Citation

External Links



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