LEITO, A. Extensive spring rest in Estonia of migrating Brent Geese Branta leucopsis-a newcomer to the Estonian breeding fauna. Ornis Fennica, [S. l.], v. 64, n. 1, p. 23–24, 1987. Disponível em: https://ornisfennica.journal.fi/article/view/133228. Acesso em: 19 apr. 2025.