French: Ouette à tête grise German: Graukopfgans Spanish: Cauquén cabecigrís
P. L. Sclater
Chiloé Island, Chile
S Chile and S Argentina, from 37° S to Tierra del Fuego; has bred in Falkland Is. In winter moves N to C Chile and Buenos Aires, Argentina.
50–60 cm; male 1620–2267 g, female 1470–1490 g. Unmistakable, as grey head, ruddy breast, finely barred flanks and white belly separate this species from... read more
Vocalizations are sexually dimorphic as in other Chloephaga: male utters soft, wigeon-like... read more
Favours damp, southern beech (Nothofagus) forest clearings on high ground and islands,... read more
Food and feeding
Presumably mainly vegetarian; leaves, stems and seed heads of grasses and sedges, but only detailed information is from wintering grounds... read more
Starts Oct/Nov; overall season Nov–Mar in Tierra del Fuego. In single pairs or loose groups; nest abundantly lined with down, and... read more
Partially migratory, moving N to winter in pampas region to Buenos Aires province,... read more
Status and conservation
Not globally threatened (Least Concern). Total population unknown, but has been estimated at 25,000–100,000 individuals. Considered especially common in Chile; rarer in... read more
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!