HAUKIOJA, E. Flightlessness in some moulting passerines in Northern Europe. Ornis Fennica, [S. l.], v. 48, n. 3–4, p. 101–116, 1971. Disponível em: https://ornisfennica.journal.fi/article/view/132817. Acesso em: 18 touko. 2024.