GEORGE, Joseph. A Young Dark Grey Cuckoo-shrike. Indian Forester, [S. l.], v. 84, n. 5, p. 286–287, 1958. DOI: 10.36808/if/1958/v84i5/24347. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/24347. Acesso em: 21 aug. 2025.