Larsson, Rolf. “Nest Location Fidelity in the Common Eider Somateria Mollissima at Utklippan in the Baltic Sea”. Ornis Svecica 18, no. 2 (April 1, 2008): 123–126. Accessed May 4, 2024. https://journals.lub.lu.se/os/article/view/22676.