This is a ruddy shelduck video.
They very rarely breed in the Netherlands.
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.
- Tadorna ferruginea (animalsoftheworldblog.wordpress.com)
- Savi’s warbler, willow warbler, wren and curlews (dearkitty1.wordpress.com)
- Spoonbills, other birds of Dutch desert island (dearkitty1.wordpress.com)
- Cuckoo, linnet, and purple heron (dearkitty1.wordpress.com)
- The ultimate prank weapon? Moulting tarantula leaves behind perfect shell (metro.co.uk)
- March 9-12 ~~ Keoladeo Ghana National Park~~ (ifonlypolyglotwasajob.wordpress.com)
- Nature reserves attract new species (bbc.co.uk)
- Calico-the-Shelduck, Chapter 1 (marygilmartin.wordpress.com)
- Two eaglets born, Lauwersmeer, the Netherlands (dearkitty1.wordpress.com)
- Rare Spoonbill at Ghadira nature reserve (timesofmalta.com)