CIACH, Michał. The first record of melanism in the Red-backed Shrike Lanius collurio. Ornis Svecica, Lund, Sweden, v. 19, n. 1, p. 55–56, 2009. DOI: 10.34080/os.v19.22657. Disponível em: https://journals.lub.lu.se/os/article/view/22657. Acesso em: 17 jun. 2024.