Appearance
These birds are 60–72.5 centimetres long and weigh 2.7–3.2 kilograms . Males have a white head and breast, whereas the females are brown with black-striped wings and yellow feet, and could be mistaken for ruddy-headed geese. A greenish-bronze speculum is located on the inner secondary flight feathers of the adult male.In Chapter VI of ''On the Origin of Species'', author Charles Darwin noted that the upland goose has webbing between its toes that appeared to be "rudimentary in function, though not in structure", and concluded that this was a vestigial anatomical feature in this bird.
Distribution
They are found in southern temperate grasslands, arid lowland scrubs, pastures and agricultural lands, from sea level up to around 1,500 meters. There is also a sizeable introduced population on the sub-Antarctic South Georgia Island.Habitat
They are found in southern temperate grasslands, arid lowland scrubs, pastures and agricultural lands, from sea level up to around 1,500 meters. There is also a sizeable introduced population on the sub-Antarctic South Georgia Island.References:
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