HILDÉN, O.; ULFVENS, J.; PAHTAMAA, T.; HÄSTBACKA, H. Changes in the archipelago bird populations of the Finnish Quark, Gull of Bothnia, from 1957–60 to 1990–91. Ornis Fennica, [S. l.], v. 72, n. 3, p. 115–126, 1995. Disponível em: https://ornisfennica.journal.fi/article/view/133421. Acesso em: 22 nov. 2024.