• BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

    Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

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

(Taxonomy)
(Flight photo added. Distribution expanded. Attempt to disguise copied text. References updated)
Line 1: Line 1:
[[Image:Yellow-billed_Duck.jpg|thumb|550px|right|Photo by {{user|Mybs|Mybs}} <br />Location: Helderberg Nature Reserve, Western Cape, [[South Africa]] ]]
+
[[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|Anas]] undulata
 
;[[:Category:Anas|Anas]] undulata
 
 
==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.
+
*Grey body
 
+
*Darker head
 
+
*Bright yellow bill
 +
*Wings: white below with white-bordered green speculum (blue in the northern race)<br />
 +
Sexes similar. '''Juveniles''' slightly duller than adults
 +
[[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]].
+
[[Africa]]<br />
 
+
'''Western Africa''': [[Mali]], [[Cameroon]], [[Democratic Republic of Congo]] and [[Angola]]<br />
 +
'''Eastern Africa''': [[Sudan]], [[Ethiopia]], [[Djibouti]], [[Kenya]], [[Uganda]], [[Rwanda]], [[Burundi]], [[Tanzania]], [[Zambia]], [[Mozambique]] and [[Malawi]]<br />
 +
'''Southern Africa''': [[Namibia]], [[Botswana]], [[Zimbabwe]], [[South Africa]], [[KwaZulu-Natal]], [[Lesotho]] and [[Swaziland]].
 
==Taxonomy==
 
==Taxonomy==
 
''Anas undulata'' has two subspecies:<sup>[[#References|[1]]]</sup>
 
''Anas undulata'' has two subspecies:<sup>[[#References|[1]]]</sup>
 
*''A. u. undulata''
 
*''A. u. undulata''
:*Locally from [[Kenya]] and [[Uganda]] to [[Angola]] and [[South Africa]]
+
:*Locally from [[Kenya]] (upper Blue Nile region) to [[Uganda]] to [[Angola]] and [[South Africa]]
 
*''A. u. rueppelli''
 
*''A. u. rueppelli''
 
:*[[Ethiopia]] to northern [[Kenya]] and southern [[Sudan]]
 
:*[[Ethiopia]] to northern [[Kenya]] and southern [[Sudan]]
 
 
==Habitat==
 
==Habitat==
 
Freshwater in fairly open country.
 
Freshwater in fairly open country.
 
 
==Behaviour==
 
==Behaviour==
 +
====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.  
 
+
====Breeding====
It nests on the ground in dense vegetation near water; 6-12 eggs are laid.
+
It nests on the ground in dense vegetation near water. The clutch consists of 6-12 eggs.
 
==References==
 
==References==
#{{Ref-Clements6thNov08}}
+
#{{Ref-Clements6thDec10}}#Avibase
 +
#Wikipedia
 
{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==

Revision as of 22:26, 25 December 2010

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

Anas undulata has two subspecies:[1]

  • A. u. undulata
  • A. u. rueppelli

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, JF. 2010. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2010. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/Clements%206.5.xls/view
  2. Avibase
  3. Wikipedia

Recommended Citation

External Links

Top