The Eider ducks on Christiansoe and Frederiksoe
On Ertholmene the Eider ducks breed all around, as there (apart from a few hedgehogs) are no mammals on the islands
Eider ducks on Ertholmene
Ertholmene Naval Fortress – Christiansø
A small unique island community far out in the Baltic Sea
On Ertholmene the Eider ducks breed all around, as there (apart from a few hedgehogs) are no mammals on the islands
Ertholmene Naval Fortress - Christiansø 