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Anas georgica

Anas georgica , Photo: Duncan Wright(*)

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Aves
Subclassis: Carinatae
Infraclassis: Neornithes
Parvclassis: Neognathae
Ordo: Anseriformes
Familia: Anatidae
Subfamilia: Anatinae
Genus: Anas
Species: Anas georgica

Name

Anas georgica Gmelin, 1789

References

* Syst.Nat. 1 pt2 p.516

Vernacular names
Internationalization
Česky: Ostralka žlutozobá
English: Yellow-billed Pintail
Español: Pato maicero
日本語: キバシオナガガモ
‪Norsk (bokmål)‬: Spisshaleand
Svenska: Gulnäbbad stjärtand

The Yellow-billed Pintail (Anas georgica) is a South American dabbling duck of the genus Anas with three described subspecies.

Description

The Yellow-billed Pintail has a brown head and neck. The bill is yellow with a black tip and a black stripe down the middle. The tail is brownish and pointed. The upper wing is grayish-brown, and the secondaries are blackish-green. The rest of the body is buffish brown with varying size black spots. The species is sometimes confused with Speckled Teal, but can be differentiated by the yellow stripes on its bill, its larger size and its tendency not to form large groups.

Distribution and habitat

The range includes much of South America, the Falkland Islands and South Georgia. The nominate and smallest subspecies, the South Georgia Pintail A. g. georgica, is thought to number between 1000 and 1500 pairs, and is found only in South Georgia. The Chilean, or Brown, Pintail A. g. spinicauda is widespread on the South American mainland from extreme southern Colombia southwards, as well as in the Falkland Islands, and numbers well over 110,000. Niceforo's Pintail A. g. niceforoi, formerly found in central Colombia, is believed to be extinct, having been last recorded in 1952 (and described only in 1946). Their habitat ranges from high elevation lakes and marshes to low elevation lakes and rivers and coasts in open country.[2]

Breeding

Nests are formed on the ground and lined with grass and down. They hide their nests in vegetation close to water. They lay 4 to 10 eggs in a clutch.

References

1. ^ BirdLife International (2009). "Anas georgica". IUCN Red List of Threatened Species. Version 2009.2. International Union for Conservation of Nature. http://www.iucnredlist.org/apps/redlist/details/141528.
2. ^ "Anas georgica - Yellow-billed Pintail". Debra Bourne. Wildlife Information. http://wildlife1.wildlifeinformation.org/S/0AvAnserif/anatidae/1acravan_anas/anas_georgica/anas_georgica.html#Intraspecific. Retrieved 2010-07-14.

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License