A trip to Alaska to find the Spectacled Eider, a duck which is the focus of intense research and a species that represents the future of many Arctic creatures. Show more
Discover 11,128,835 listings and 280,349 playable programmes from the BBC
A trip to Alaska to find the Spectacled Eider, a duck which is the focus of intense research and a species that represents the future of many Arctic creatures. Show more