HARIO, M.; RINTALA, J. Age of first breeding in the Common Eider Somateria m. mollissima population in the northern Baltic Sea. Ornis Fennica, [S. l.], v. 86, n. 3, p. 81–88, 2009. Disponível em: https://ornisfennica.journal.fi/article/view/133724. Acesso em: 13 may. 2024.