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− | [[Image:Comb Duck | + | [[Image:Comb Duck female on right.jpg|thumb|500px|right|Female<br />Photo © by {{user|Stanley+Jones|Stanley Jones}}<br />Jaén, Cajamarca, [[Peru]], January 2017]] |
− | + | ;[[:Category:Sarkidiornis|Sarkidiornis]] sylvicola | |
− | ;[[:Category:Sarkidiornis|Sarkidiornis]] | + | '''Alternative name: American Comb Duck''' |
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==Identification== | ==Identification== | ||
− | Glossy blue black | + | [[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 | ||
+ | *White underparts | ||
+ | *Blue and green iridescent [[Topography#Wings|secondaries]] | ||
+ | *White head with dark spots | ||
+ | *White neck<br /> | ||
+ | '''Male''' - larger with large black knob on the bill<br /> | ||
+ | '''Juvenile''' | ||
+ | *Dull buff underparts, face and neck | ||
+ | *Dull brown upperparts, crown and eyestripe | ||
==Distribution== | ==Distribution== | ||
− | + | Tropical [[South America]] (east of the Andes) to northern [[Argentina]].<br /> | |
− | + | Has been reported as a vagrant on [[Trinidad]]. | |
==Taxonomy== | ==Taxonomy== | ||
− | + | 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 and lakes. | + | [[Image:Comb Duck 6549 les.jpg|thumb|300px|right|Young Male<br />Photo © by {{user|Dave+B+Smith|Dave B Smith}}<br />[[Trinidad]], July 2010]] |
+ | Wetlands, freshwater swamps, rice fields and lakes. | ||
==Behaviour== | ==Behaviour== | ||
− | The diet | + | ====Diet==== |
+ | The diet for both subspecies is mostly vegetarian, with grass, seeds and rice grain; supplemented with small fish and invertebrates. | ||
====Breeding==== | ====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. | 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== | ==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]] |
Latest revision as of 08:19, 28 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 9 May 2024 from https://www.birdforum.net/opus/Comb_Duck