Scientific name: Somateria mollissima
The eider is a large seaduck, famed for its soft, downy feathers that are not only used by the bird to line and insulate its nest, but also by humans to stuff our quilts and pillows. It nests around the northern coastline of the UK.
Average lifespan: 8 years
Classified in the UK as Amber under the Birds of Conservation Concern 4: the Red List for Birds (2015). Listed as Near Threatened on the global IUCN Red List of Threatened Species.