NygÃ¥rd, Torgeir, BjÃ¸rn Frantzen, and Saulius Å vaÅ¾as. “Steller’s Eiders Polysticta Stelleri Wintering in Europe: Numbers, Distribution and Origin”. Wildfowl 46 (November 1, 1995): 140–156. Accessed April 15, 2026. https://tidsskrift.dk/Wildfowl/article/view/154659.