7.2.1 White-headed duck
The White-headed Duck Oxyura leucocephala is a globally endangered species with an estimated world population of less than 15,000 individuals (BirdLife International 2000). The Council of Europe White-headed Duck Action Plan (Green & Hughes 1996) identified hybridisation with the introduced North American Ruddy Duck Oxyura jamaicensis as the most serious threat to the White-headed Duck.
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