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It is resident around lakes and marshes in the high Andes, usually well above 3000 m. It is largely terrestrial and avoids swimming except in emergencies.
This heavily built bird has a tiny pink bill and white plumage except for black in the wings and tail. The female is similar to the male, but is smaller.
The Andean Goose is a grazing species, eating grasses. It nests on the ground in a bare scrape near water, laying 6-10 eggs. It is territorial in the breeding season, but otherwise forms small flocks.