Place: RSPB Balranald, North Uist, Outer Hebrides
Date: 15 June 2019.
Place: Kildonan, South Uist, Outer Hebrides
Date: 18 June 2019.
[Somateria mollissima, Family Anatidae, Order Anseriformes, Wikipedia Entry: Common eider]
The sound of the eider duck (borrowed from the Xeno-Canto website, recordist Ruud van Beusekom)
Distribution and sightings of the eider duck across the British Isles (borrowed and modified from the Bird Atlas Mapstore).