There the sexually aggressive males are wooing female white-headed ducks.

"It's now subject to an eradication programme before it wipes out the native white-headed duck."

His aggressive nature and dazzling courtship display.that's it.is having the desired effect on female white-headed ducks.

It is the most important wintering site in the world for the white-headed duck, a globally threatened species.

"If we can reduce the ruddy to a reasonably small number in Britain, they shouldn't be a serious threat to the white-headed ducks."

"It's our responsibility to redress the balance and protect the white-headed duck, which faces extinction.

The best way to protect the white-headed duck would be to deport the alien ruddy from Europe, but that may prove difficult.

Rarities come too, like the white-headed duck.

As a result, "pure" white-headed ducks are disappearing.

The white-headed duck has brown body feathers, a bulging blue bill, white cheeks and a mostly white head with a black cap.

For example, Europe's white-headed ducks are supposed to be a different species from North American ruddy ducks.

There is a similar situation with White-headed Ducks and Ruddy Ducks.

Other endangered species in the area at this time are Dalmatian Pelicans and White-headed Ducks.

Such tough action's called for because while Ruddy Duck numbers world wide are enormous White-headed ducks are seriously threatened.

The White-headed Duck (Oxyura leucocephala) is a small stiff-tailed duck.

ARKive - images and movies of the white-headed duck (Oxyura leucocephala)

White-headed duck (Oxyura leucocephala)

White-headed Duck (Endangered)

THE sexual prowess of the American ruddy duck is threatening an endangered European relative, the white-headed duck, scientists say.

The lakes are one of the most important wintering areas for the rare white-headed ducks (Oxyura leucocephala) in Pakistan that comes here from Central Asia.

The increasing number of Ruddy ducks and hybrids threatens the existence of the White-headed ducks, resulting in shooting campaigns to remove the introduced species.

A North American bird recently established in English West Midlands; smaller than White-headed Duck, with much less white on head of more uniformly chestnut drake.

This duck's aggressive courting behaviour and willingness to interbreed with the endangered native White-headed Duck (Oxyura leucocephala), of southern Europe, has caused some concern.

The most notable of the many species present in the park are the Marbled duck and the White-headed duck with the park containing two of the largest worldwide populations.

WHITE-HEADED DUCK Oxyura leucocephala.

There the sexually aggressive males are wooing female white-headed ducks.

"It's now subject to an eradication programme before it wipes out the native white-headed duck."

His aggressive nature and dazzling courtship display.that's it.is having the desired effect on female white-headed ducks.

It is the most important wintering site in the world for the white-headed duck, a globally threatened species.

"If we can reduce the ruddy to a reasonably small number in Britain, they shouldn't be a serious threat to the white-headed ducks."

"It's our responsibility to redress the balance and protect the white-headed duck, which faces extinction.

The best way to protect the white-headed duck would be to deport the alien ruddy from Europe, but that may prove difficult.

Rarities come too, like the white-headed duck.

As a result, "pure" white-headed ducks are disappearing.

The white-headed duck has brown body feathers, a bulging blue bill, white cheeks and a mostly white head with a black cap.

For example, Europe's white-headed ducks are supposed to be a different species from North American ruddy ducks.

There is a similar situation with White-headed Ducks and Ruddy Ducks.

Other endangered species in the area at this time are Dalmatian Pelicans and White-headed Ducks.

Such tough action's called for because while Ruddy Duck numbers world wide are enormous White-headed ducks are seriously threatened.

The White-headed Duck (Oxyura leucocephala) is a small stiff-tailed duck.

ARKive - images and movies of the white-headed duck (Oxyura leucocephala)

White-headed duck (Oxyura leucocephala)

White-headed Duck (Endangered)

THE sexual prowess of the American ruddy duck is threatening an endangered European relative, the white-headed duck, scientists say.

The lakes are one of the most important wintering areas for the rare white-headed ducks (Oxyura leucocephala) in Pakistan that comes here from Central Asia.

The increasing number of Ruddy ducks and hybrids threatens the existence of the White-headed ducks, resulting in shooting campaigns to remove the introduced species.

A North American bird recently established in English West Midlands; smaller than White-headed Duck, with much less white on head of more uniformly chestnut drake.

This duck's aggressive courting behaviour and willingness to interbreed with the endangered native White-headed Duck (Oxyura leucocephala), of southern Europe, has caused some concern.

The most notable of the many species present in the park are the Marbled duck and the White-headed duck with the park containing two of the largest worldwide populations.

WHITE-HEADED DUCK Oxyura leucocephala.

The White-headed Duck (Oxyura leucocephala) is a small stiff-tailed duck.

ARKive - images and movies of the white-headed duck (Oxyura leucocephala)

White-headed duck (Oxyura leucocephala)

This duck's aggressive courting behaviour and willingness to interbreed with the endangered native White-headed Duck (Oxyura leucocephala), of southern Europe, has caused some concern.

WHITE-HEADED DUCK Oxyura leucocephala.

Europe's rarest duck, the white-headed Oxyura leucocephala, used to live throughout the Mediterranean region, but hunting and habitat destruction have wiped out most of the population since the beginning of the century.