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Ekroos, J., Fox, A.D., Christensen, T.K., Petersen, I.K., Kilpi, M., Jonsson, J.E., Green, M., Laursen, K., Cervencl, A., de Boer, P., Nilsson, L., Meissner, W., Garthe, S. and Öst, M. 2012. Declines amongst breeding Eider Somateria mollissima numbers in the Baltic/Wadden Sea flyway. Ornis Fennica. 89, 2 (Jul. 2012), 81–90. DOI:https://doi.org/10.51812/of.133795.