Eider Ducks Fight To Survive | Behind the Scenes of Frozen Planet II | BBC Earth

Even the toughest ducks in the world struggle to survive in this environment...

In winter, when the Arctic ocean freezes over, the common eider duck (Somateria mollissima) can be found in open water surrounded by sea ice, called polynyas. But even though these oasis provide a rich sample of food, the can be extremely dangerous.