Medium-sized duck (L 45 cm), unmistikable because of it shape and colour. Male in full plumage has white head and a bright blue, almost grotesquely swollen bill, which is smaller and greyer in summer. Female more brown plumage. The White-headed Duck breeds principally in small, shallow, brackish wetlands with abundant submerged vegetation and extensive reedbeds. The species is resident.
Reasons for the need for protection/inclusion in annex I
This species has become extinct in several European countries during the twentieth century. The main causes of the decline in range have been wetland drainage, hunting, disturbances, pesticides and egg and juveniles predation from rats and dogs. The greatest threat, however, now comes from hybridization and competetion with the Ruddy Duck (Oxyura jamaicensis).
yellow = summer visitor
green = resident
blue = winter visitor
50 / 100 pairs
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