ANDERSSON, Reino. Helping behaviour in Black Redstart Phoenicurus ochruros. Ornis Svecica, Lund, Sweden, v. 6, n. 3, p. 130–132, 1996. DOI: 10.34080/os.v6.22990. Disponível em: https://journals.lub.lu.se/os/article/view/22990. Acesso em: 19 apr. 2024.