PULLIAINEN, E. Choice of prey by a pair of Gyrfalcons Falco rusticolus during the nesting period in Forest-Lapland. Ornis Fennica, [S. l.], v. 52, n. 1, p. 19–22, 1975. Disponível em: https://ornisfennica.journal.fi/article/view/132876. Acesso em: 23 nov. 2024.