BENGTSON, S.-A. Food of ducklings of surface feeding ducks at Lake Myvatn, Iceland. Ornis Fennica, [S. l.], v. 52, n. 1, p. 1–4, 1975. Disponível em: https://ornisfennica.journal.fi/article/view/132873. Acesso em: 17 touko. 2024.