TAST, J.; RASSI, P. Roosts and roosting fights of wintering Jackdaws Corvus monedula at Tampere, Finland. Ornis Fennica, [S. l.], v. 50, n. 1, p. 29–45, 1973. Disponível em: https://ornisfennica.journal.fi/article/view/132847. Acesso em: 14 may. 2024.