Yellow-billed Pintail
Anas georgica
Handsome and generally common dabbling duck of wetlands, lakes, and river mouths. Sexes look alike with a bright yellow bill (duller for a short while on young birds), a plain and rather “soft-faced” brown head, and dark-mottled sides. Also note its elegant shape with a slender neck and long pointed tail. Yellow-billed Teal look somewhat similar (and often occurs in same areas) but Yellow-billed Teal are smaller and more compact with a darker head and plain grayish sides.
Identification
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-sized black spots. The species is sometimes confused with yellow-billed teal (Anas flavirostris) but can be differentiated by the yellow stripes on its bill, its larger size, and its tendency not to form large groups. The nominate subspecies is smaller and darker than Anas g. spinicauda. The yellow-billed pintail forms a superspecies with the northern pintail (Anas acuta).
Taxonomy
The yellow-billed pintail was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the ducks, geese, and swans in the genus Anas and coined the binomial name Anas georgica. Gmelin based his description on the "Georgia duck" that had been described in 1785 by the English ornithologist John Latham in his A General Synopsis of Birds. The naturalist Joseph Banks had provided Latham with a water-colour drawing of the duck by Georg Forster who had accompanied James Cook on his second voyage to the Pacific Ocean. The watercolour was painted in 1775 in South Georgia. This picture is now the holotype for the species and is held by the Natural History Museum in London. The genus name Anas is the Latin word for a duck.<p>Three subspecies are recognised:
- Scientific name
- Anas georgica
- Authority
- Gmelin, JF, 1789
- Order
- Anseriformes
- Family
- Anatidae
- Genus
- Anas
Range 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.
- Migration
- Complete migrants
Conservation
- Population trend
- declining
Photos
Distribution
Bird Calls
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