Ruddy shelducks moult in Dutch nature reserve

This is a ruddy shelduck video from India.

It says about itself:

The ruddy shelduck (Tadorna ferruginea), known in India as the Brahminy duck, is a member of the family Anatidae. It has orange-brown body plumage with a paler head, while the tail and the flight feathers in the wings are black, contrasting with the white wing-coverts. It is a migratory bird. It has a loud honking call.

It is a distinctive waterfowl, 58 to 70 cm (23 to 28 in) in length with a wingspan of 110 to 135 cm (43 to 53 in).

Ruddy shelducks nest in south eastern Europe, central Asia, and, eg, in Morocco.

They very rarely breed in the Netherlands.

However, now there are about 600 birds in the Dutch Natte Hond nature reserve in the Eemmeer lake.

The ducks are there to moult.

Where did they come from? Maybe from Germany, where there is a feral ruddy shelduck population?

UPDATE: in 2012, about 800 ruddy shelducks moulted there.

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