The Cape teal (''Anas capensis'') also Cape wigeon or Cape widgeon is a 44–46 cm long

dabbling duck 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 yo ...

of open wetlands in sub-Saharan

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

Taxonomy

The Cape teal was formally described in 1789 by the German naturalist

Johann Friedrich Gmelin , fields = , workplaces = University of GöttingenUniversity of Tübingen , alma_mater = University of Tübingen , doctoral_advisor = Philipp Friedrich GmelinFerdinand Christoph Oetinger , academic_advisors = , doctora ...

in his revised and expanded edition of

Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the ...

's ''

Systema Naturae ' (originally in Latin written ' with the ligature æ) is one of the major works of the Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the system, now known as binomial nomen ...

''. He placed it with all the ducks, geese and swans in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

Anas ''Anas'' is a genus of dabbling ducks. It includes the pintails, most teals, and the mallard and its close relatives. It formerly included additional species but following the publication of a molecular phylogenetic study in 2009 the genus wa ...

'' and coined the

binomial name In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

''Anas capensis''. Gmelin based his description on the "Cape widgeon" that had been described in 1785 by the English ornithologist John Latham in his ''A General Synopsis of Birds''. The naturalist

Joseph Banks Sir Joseph Banks, 1st Baronet, (19 June 1820) was an English naturalist, botanist, and patron of the natural sciences. Banks made his name on the 1766 natural-history expedition to Newfoundland and Labrador. He took part in Captain James ...

had provided Latham with a water-colour drawing of the teal by

Georg Forster Johann George Adam Forster, also known as Georg Forster (, 27 November 1754 – 10 January 1794), was a German naturalist, ethnologist, travel writer, journalist and revolutionary. At an early age, he accompanied his father, Johann Reinhold F ...

who had accompanied

James Cook James Cook (7 November 1728 Old Style date: 27 October – 14 February 1779) was a British explorer, navigator, cartographer, and captain in the British Royal Navy, famous for his three voyages between 1768 and 1779 in the Pacific Ocean an ...

on his second voyage to the Pacific Ocean. His picture was drawn in 1773 at the

Cape of Good Hope The Cape of Good Hope ( af, Kaap die Goeie Hoop ) ;''Kaap'' in isolation: pt, Cabo da Boa Esperança is a rocky headland on the Atlantic coast of the Cape Peninsula in South Africa. A common misconception is that the Cape of Good Hope is t ...

. This picture is now the

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

for the species and is held by the

Natural History Museum A natural history museum or museum of natural history is a scientific institution with natural history collections that include current and historical records of animals, plants, fungi, ecosystems, geology, paleontology, climatology, and more. ...

in London. The genus name ''Anas'' is the Latin word for a duck. The specific epithet ''capensis'' indicates the Cape of Good Hope. The species is

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

: no

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

are recognised.

Description

Like many southern ducks, the sexes are similar. It is very pale and mainly grey, with a browner back and pink on the bill (young birds lack the pink). This is a generally quiet species, except during mating displays. The breeding male has a clear whistle, whereas the female has a feeble "quack". The Cape teal cannot be confused with any other

duck Duck is the common name for numerous species of waterfowl in the family Anatidae. Ducks are generally smaller and shorter-necked than swans and geese, which are members of the same family. Divided among several subfamilies, they are a form t ...

in its range. This species is essentially

non-migratory Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by ...

, although it moves opportunistically with the rains. It is a thinly distributed but widespread duck, rarely seen in large groups except the moulting flocks, which may number up to 2000. The Cape teal feeds on aquatic plants and small creatures (invertebrates, crustaceans and amphibians)Hockey, P.A.R., Dean, W.R.J., Ryan, P.G. (Eds). 2005. Roberts – Birds of Southern Africa, VIIth ed. The trustees of the John Voelcker bird book fund, Cape Town. obtained by dabbling. The nest is on the ground under vegetation and near water. The Cape teal is one of the species to which the ''Agreement on the Conservation of African-Eurasian Migratory Waterbirds'' (

AEWA The Agreement on the Conservation of African-Eurasian Migratory Waterbirds, or African-Eurasian Waterbird Agreement (AEWA) is an independent international treaty developed under the auspices of the United Nations Environment Programme's Conventio ...

) applies.

Gallery

File:Anas capensis -Lake Nakuru, Kenya-8.jpg, Lake Nakuru, Kenya File:Cape Teal, Serengeti.jpg, Serengeti NP File:Anas capensis, Austin Roberts.jpg, Austin Roberts sanctuary, South Africa File:Teal Cape 2015 08 22 10 26 06 9524.jpg, Darville, Pietermaritzburg, South Africa File:Teal Cape 2015 08 22 12 09 41 0150.jpg, Darville, Pietermaritzburg, South Africa File:Teal Cape 2015 08 22 10 26 45 9538.jpg, Darville, Pietermaritzburg, South Africa File:Teal Cape 2015 08 22 10 31 19 9561.jpg, Darville, Pietermaritzburg, South Africa File:Teal Cape 2015 08 22 11 53 23 9980.jpg, Darville, Pietermaritzburg, South Africa File:Teal Cape 2015 08 22 11 56 54 0011.jpg, Darville, Pietermaritzburg, South Africa File:Teal Cape 2015 08 22 12 07 05 0091.jpg, Darville, Pietermaritzburg, South Africa

References

External links

Species text in The Atlas of Southern African Birds
{{Taxonbar, from=Q194317

Cape teal The Cape teal (''Anas capensis'') also Cape wigeon or Cape widgeon is a 44–46 cm long dabbling duck of open wetlands in sub-Saharan Africa. Taxonomy The Cape teal was formally described in 1789 by the German naturalist Johann Friedrich G ...

Birds of Southern Africa Birds of Sub-Saharan Africa