• 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

m
(range subspecies updated)
 
Line 17: Line 17:
 
''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]] (upper Blue Nile region) to [[Uganda]] to [[Angola]] and [[South Africa]]
+
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)
 +
:*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''
 
*''A. u. ruppelli''
:*[[Ethiopia]] to northern [[Kenya]] and southern [[Sudan]]
+
:*[[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.
Line 28: Line 29:
 
It nests on the ground in dense vegetation near water. The clutch consists of 6-12 eggs.
 
It nests on the ground in dense vegetation near water. The clutch consists of 6-12 eggs.
 
==References==
 
==References==
#{{Ref-Clements6thAug14}}#Avibase
+
#{{Ref-Clements6thAug17}}#Avibase
 
#Wikipedia
 
#Wikipedia
 
{{ref}}
 
{{ref}}

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

Top