The Ashy-headed Goose (Chloephaga poliocephala) is a large sheldgoose which breeds in mountainous areas of southernmost South America and winters on lowlands to the north of its breeding range.
Favorite nesting sites are damp upland forest clearings where it builds a lined nest in tall grass. Females lay an average of 4-6 eggs per clutch. This goose feed by grazing as it rarely swims.
The stocky bird measures 50-55cm and has a pale brown back, chestnut neck and black-barred white flanks. The head is grey. Sexes are generally similar but males may have reduced or no underparts barring. Juveniles are duller and have brown heads.
In flight, this species shows black primaries, with the rest of the wing white except for a broad green bar. The male’s call is a soft whistle, and the female’s is a harsh cackle.