SÖDERSTRÖM, B. Unusual imitation and song syntax in a Chaffinch Fringilla coelebs during pre-breeding season. Ornis Fennica, [S. l.], v. 85, n. 1, p. 33–36, 2008. Disponível em: https://ornisfennica.journal.fi/article/view/133702. Acesso em: 13 nov. 2024.