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(split Comb Duck and Knob-billed Duck) |
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| − | [[Image: | + | [[Image:Comb Duck female on right.jpg|thumb|550px|right|Female<br />Photo by {{user|Stanley+Jones|Stanley Jones}}<br />Jaén, Cajamarca, [[Peru]], January 2017]] |
| − | ;[[:Category:Sarkidiornis|Sarkidiornis]] | + | ;[[:Category:Sarkidiornis|Sarkidiornis]] sylvicola |
| − | ''' | + | '''Alternative name: American Comb Duck''' |
==Identification== | ==Identification== | ||
| − | [[Image:Comb Duck | + | [[Image:Comb Duck Male.jpg|thumb|300px|right|Male<br />Photo by {{user|Stanley+Jones|Stanley Jones}}<br />Jaén, Cajamarca, [[Peru]], January 2017 ]] |
| − | + | 64–79 cm (25-31 in) | |
*Glossy blue black upperparts | *Glossy blue black upperparts | ||
*White underparts | *White underparts | ||
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*Dull brown upperparts, crown and eyestripe | *Dull brown upperparts, crown and eyestripe | ||
==Distribution== | ==Distribution== | ||
| − | + | Tropical [[South America]] (east of the Andes) to northern [[Argentina]].<br /> | |
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Has been reported as a vagrant on [[Trinidad]]. | Has been reported as a vagrant on [[Trinidad]]. | ||
==Taxonomy== | ==Taxonomy== | ||
| − | + | [[Image:Comb Duck 6549 les.jpg|300px|right|Young Male<br />Photo by {{user|Dave+B+Smith|Dave B Smith}}<br />[[Trinidad]], July 2010]] | |
| − | [[Image: | + | This is a [[Dictionary_M-O#M|monotypic]] species<sup>[[#References|1]]</sup>.<br /> |
| − | + | Formerly considered conspecific with [[Knob-billed Duck]] from [[Africa]] and [[Asia]]. | |
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==Habitat== | ==Habitat== | ||
Wetlands, freshwater swamps, rice fields and lakes. | Wetlands, freshwater swamps, rice fields and lakes. | ||
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The diet for both subspecies is mostly vegetarian, with grass, seeds and rice grain; supplemented with small fish and invertebrates. | The diet for both subspecies is mostly vegetarian, with grass, seeds and rice grain; supplemented with small fish and invertebrates. | ||
====Breeding==== | ====Breeding==== | ||
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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. | 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. | ||
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==References== | ==References== | ||
| − | #{{Ref- | + | #{{Ref-Clements6thAug18}}#{{Ref-Hockeyetal05}}#Handbook of the Birds of the World Alive (retrieved June 2015) |
{{ref}} | {{ref}} | ||
==External Links== | ==External Links== | ||
| − | {{GSearch|Sarkidiornis+ | + | {{GSearch|Sarkidiornis+sylvicola}} |
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| − | [[Category:Birds]] [[Category:Sarkidiornis | + | [[Category:Birds]] [[Category:Sarkidiornis]] |
Revision as of 14:34, 27 August 2018
- Sarkidiornis sylvicola
Alternative name: American Comb Duck
Identification
64–79 cm (25-31 in)
- 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
Tropical South America (east of the Andes) to northern Argentina.
Has been reported as a vagrant on Trinidad.
Taxonomy
This is a monotypic species1.
Formerly considered conspecific with Knob-billed Duck from Africa and Asia.
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
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.
References
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- 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
- Handbook of the Birds of the World Alive (retrieved June 2015)
Recommended Citation
- BirdForum Opus contributors. (2024) Comb Duck. In: BirdForum, the forum for wild birds and birding. Retrieved 27 April 2024 from https://www.birdforum.net/opus/Comb_Duck
