CIACH, M.; KWARCIANY, A.; SWITALA, D. Records of brown plumage aberration in the Common Buzzard Buteo buteo. Ornis Svecica, Lund, Sweden, v. 21, n. 2–4, p. 119–122, 2011. DOI: 10.34080/os.v21.22602. Disponível em: https://journals.lub.lu.se/os/article/view/22602. Acesso em: 6 jul. 2022.