MIKKOLA, H.; SULKAVA, S. On occurrence and feeding habits of Short-eared Owl in Finland 1964–68. Ornis Fennica, [S. l.], v. 46, n. 4, p. 188–193, 1969. Disponível em: https://ornisfennica.journal.fi/article/view/132777. Acesso em: 20 apr. 2025.