KÄLLANDER, H. Breeding data for the Pied Flycatcher Ficedula hypoleuca in southernmost Sweden. Ornis Fennica, [S. l.], v. 52, n. 3, p. 97–102, 1975. Disponível em: https://ornisfennica.journal.fi/article/view/132888. Acesso em: 18 may. 2024.