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African black duck. The African black duck is a black duck with pronounced white marks on its back, a dark bill, and orange legs and feet. A purpish-blue speculum is often visible, especially in flight. It lives in central and southern Africa. It is also known as the black river duck, or (A. s. leucostigma) West African black duck or Ethiopian ...
Download QR code; Print/export ... move to sidebar hide. Black duck may refer to three dabbling ducks: African black duck, Anas sparsa; American black duck, Anas ...
This is a list of the bird species recorded in Africa.The area covered by this list is the Africa region defined by the American Birding Association's listing rules. [1] In addition to the continent itself, the area includes Madagascar, Mauritius, Rodrigues, Seychelles, Cape Verde, the Comoro Islands, Zanzibar and the Canary Islands, São Tomé and Príncipe and Annobón in the Gulf of Guinea.
The knob-billed duck (Sarkidiornis melanotos) or African comb duck is a type of duck found along the tropical/sub-tropical wetlands and waterways of Sub-Saharan Africa and the island of Madagascar, as well as most of South Asia and mainland Indochina. Most taxonomic authorities classify the knob-billed duck and the comb duck separately.
This is a list of the breeds of domestic duck which have official recognition at national or international level. [1]Most breeds of duck derive from the wild mallard, Anas platyrhynchos, while a small minority are descendants of the Muscovy duck, Cairina moschata.
The retention of ancestral genetic variation can be caused by incomplete lineage sorting (ILS) and introgression after secondary contact. These two factors can cause genetic variation to be shared between closely related species which is possibly why an American black duck or a Mottled duck (Anas fulvigula) may have notable white on its speculum or a Mexican duck may have flecks of green.
African black duck; Aix (bird) American black duck; Anas chathamica; Anatinae; Andean crested duck; Andean duck; Australasian shoveler; ... Code of Conduct; Developers;
This is a list of the bird species recorded in Southern Africa.Southern Africa is defined as Africa south of a line between the Kunene and Zambezi rivers, encompassing Namibia, Botswana, Zimbabwe, mainland South Africa, Lesotho, Eswatini and southern and central Mozambique, as well as oceanic waters within 200 nautical miles (370 km) of the coast, covering approximately 3.5 million square ...