Energy Duck takes the form of the eider to act both as a solar collector and a buoyant energy storage device. Solar radiation is converted to electricity using low cost, off-the-shelf PV panels.

Harvested from the nest of eider ducks found wild in Iceland, collecting a kilo of this material isn't easy, and only 4 tons are produced each year.

Diana J. Hamilton, Feeding Behavior of Common Eider Ducklings in Relation to Availability of Rockweed Habitat and Duckling Age, Waterbirds: The International Journal of Waterbird Biology, Vol. 24, No.

Tweet of the Day is the voice of birds and our relationship with them, from around the world. Miranda Krestovnikoff presents the Arctic specialist the king eider duck. Relatives of the larger ...