EKROOS, Johan et al. Declines amongst breeding Eider Somateria mollissima numbers in the Baltic/Wadden Sea flyway. Ornis Fennica, [S. l.], v. 89, n. 2, p. 81–90, 2012. DOI: 10.51812/of.133795. Disponível em: https://ornisfennica.journal.fi/article/view/133795. Acesso em: 26 nov. 2025.