The Yellow-billed Pintail (Anas georgica) is a dabbling duck of the genus Anas. Its range includes Peru, Paraguay, Brazil, and Ecuador They also inhabit some of the subantarctic islands including South Georgia, which lends its name to the species. The nominate race A. g. georgica is thought to number between 1000 and 1500 pairs, and is found only in South Georgia. A. g. spinicauda is thought to number well over 110,000 and A. g. niceforoi is thought to be extinct, last being recorded in 1952 (and described only in 1940). 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.
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.
Their habitat ranges from high elevation lakes and marshes to low elevation lakes and rivers in open country. Nests are formed on the ground and lined with grass and down. They hide their nests in vegetaion close to water. They lay 4 to 10 eggs.