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Difference between revisions of "Yellow-billed Duck" - BirdForum Opus

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[[Image:Yellow-billed_Duck.jpg|thumb|550px|right|Photo by {{user|Mybs|Mybs}} <br />[[Helderberg Nature Reserve]], Western Cape, [[South Africa]], September 2004]]
[[Category:Anas]]
 
 
;[[:Category:Anas|Anas]] undulata
 
;[[:Category:Anas|Anas]] undulata
[[Image:Yellow-billed_Duck.jpg|thumb|550px|right|Photo by Mybs<br />Photo taken: Helderberg Nature Reserve.]]
 
 
 
==Identification==
 
==Identification==
Grey, darker head, bright yellow bill, wings are white below with white-bordered green speculumSexes are similar, and juveniles are slightly duller than adults. The north-eastern race is darker and has a brighter bill and blue speculum.
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*Grey body
 
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*Darker head
 
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*Bright yellow bill
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*Wings: white below with white-bordered green speculum (blue in the northern race)<br />
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Sexes similar. '''Juveniles''' slightly duller than adults
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[[Image:21502YBDflypast.jpg|thumb|350px|right|Photo by {{user|nkgray|nkgray}}<br />Marievale wetland, Gauteng, [[South Africa]], December 2005]]
 
==Distribution==
 
==Distribution==
Southern and eastern [[Africa]].
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[[Africa]]<br />
 
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'''Western Africa''': [[Mali]], [[Cameroon]], [[Democratic Republic of Congo]] and [[Angola]]<br />
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'''Eastern Africa''': [[Sudan]], [[Ethiopia]], [[Djibouti]], [[Kenya]], [[Uganda]], [[Rwanda]], [[Burundi]], [[Tanzania]], [[Zambia]], [[Mozambique]] and [[Malawi]]<br />
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'''Southern Africa''': [[Namibia]], [[Botswana]], [[Zimbabwe]], [[South Africa]], [[KwaZulu-Natal]], [[Lesotho]] and [[Swaziland]].
 
==Taxonomy==
 
==Taxonomy==
 
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====Subspecies====
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''Anas undulata'' has two subspecies:<sup>[[#References|[1]]]</sup>
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*''A. u. undulata''
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locally from Kenya and Uganda to Angola and South Africa; also local in eastern Nigeria and central Cameroon (but subspecies of this disjunct population not certain)
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:*Locally from [[Kenya]] and [[Uganda]] to [[Angola]] and [[South Africa]]; also local in eastern [[Nigeria]] and central [[Cameroon]] (but subspecies of this disjunct population not certain)
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*''A. u. ruppelli''
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:*[[Eritrea]], [[Ethiopia]], and eastern [[South Sudan]] to northern [[Uganda]] (now extirpated?) and northern [[Kenya]]
 
==Habitat==
 
==Habitat==
 
Freshwater in fairly open country.
 
Freshwater in fairly open country.
 
 
==Behaviour==
 
==Behaviour==
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====Diet====
 
The diet includes plant food for which it dabbles mainly in the evening or at night.  
 
The diet includes plant food for which it dabbles mainly in the evening or at night.  
 
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====Breeding====
It nests on the ground in dense vegetation near water; 6-12 eggs are laid.
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It nests on the ground in dense vegetation near water. The clutch consists of 6-12 eggs.
 
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==References==
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#{{Ref-Clements6thAug17}}#Avibase
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#Wikipedia
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{{ref}}
 
==External Links==
 
==External Links==
 
{{GSearch|Anas+undulata}}
 
{{GSearch|Anas+undulata}}
  
[[Category:Birds]][[category:incomplete]]
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[[Category:Birds]][[Category:Anas]]

Latest revision as of 12:01, 26 August 2017

Photo by Mybs
Helderberg Nature Reserve, Western Cape, South Africa, September 2004
Anas undulata

Identification

  • Grey body
  • Darker head
  • Bright yellow bill
  • Wings: white below with white-bordered green speculum (blue in the northern race)

Sexes similar. Juveniles slightly duller than adults

Photo by nkgray
Marievale wetland, Gauteng, South Africa, December 2005

Distribution

Africa
Western Africa: Mali, Cameroon, Democratic Republic of Congo and Angola
Eastern Africa: Sudan, Ethiopia, Djibouti, Kenya, Uganda, Rwanda, Burundi, Tanzania, Zambia, Mozambique and Malawi
Southern Africa: Namibia, Botswana, Zimbabwe, South Africa, KwaZulu-Natal, Lesotho and Swaziland.

Taxonomy

Subspecies

Anas undulata has two subspecies:[1]

  • A. u. undulata

locally from Kenya and Uganda to Angola and South Africa; also local in eastern Nigeria and central Cameroon (but subspecies of this disjunct population not certain)

  • A. u. ruppelli

Habitat

Freshwater in fairly open country.

Behaviour

Diet

The diet includes plant food for which it dabbles mainly in the evening or at night.

Breeding

It nests on the ground in dense vegetation near water. The clutch consists of 6-12 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. Avibase
  3. Wikipedia

Recommended Citation

External Links

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