The wigeons or widgeons are a group of birds,
dabbling ducks
The Anatinae are a subfamily of the family Anatidae (swans, geese and ducks). Its surviving members are the dabbling ducks, which feed mainly at the surface rather than by diving. The other members of the Anatinae are the extinct moa-nalo, a youn ...
currently classified in the genus ''
Mareca'' along with two other species. There are three extant species of wigeon, in addition to one recently extinct species.
Biology
There are three extant species: the
Eurasian wigeon (''Mareca penelope''), the
American wigeon (''M. americana'') and the
Chiloé wigeon (''M. sibilatrix''). A fourth species, the
Amsterdam wigeon
The Amsterdam wigeon (''Mareca marecula'', formerly ''Anas marecula''), also known as the Amsterdam Island duck or Amsterdam duck, was a species of anatid waterfowl, endemic to Île Amsterdam (Amsterdam Island), the French Southern Territories. T ...
(''Mareca marecula''), became
extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
in the 19th century. The wigeons' closest relatives, forming with them the genus ''Mareca'', are the
gadwall
The gadwall (''Mareca strepera'') is a common and widespread dabbling duck in the family Anatidae.
Taxonomy
The gadwall was first described by Carl Linnaeus in his landmark 1758 10th edition of ''Systema Naturae''. DNA studies have shown that ...
and the
falcated duck.
All three wigeons are similarly shaped, with a steep forehead and bulbous rear to the head. Males have a distinctive breeding plumage, in their
eclipse plumage
Plumage ( "feather") is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, ...
they resemble females, which are similar in appearance year-round. All three wigeon species hybridise in captivity
while American and Eurasian wigeons hybridise in the wild.
[Carey, Geoff J. (1993). Hybrid male wigeon in East Asia ''Hong Kong Bird Report 1992'' 160-6] An American wigeon × mallard hybrid has also been recorded.
The American wigeon was formerly called the ''baldpate'' by ornithologists, and some people still use that name, especially hunters.
The diet of the wigeon consists mainly of grass leaves (~80%), other food types eaten are seeds (~10%) and roots and stems (~5%).
References
Further reading
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External links
Photographs of hybrid wigeons can be see
herean
Mareca
Ducks
Wigeons
Bird common names
{{duck-stub