HELLSTRÖM, Magnus. A rare case of a first-winter male hybrid Common Redstart Phoenicurus phoenicurus × Black Redstart P. ochruros ringed at Ottenby, Sweden. Ornis Svecica, Lund, Sweden, v. 32, p. 80–86, 2023. DOI: 10.34080/os.v32.23819. Disponível em: https://journals.lub.lu.se/os/article/view/23819. Acesso em: 29 mar. 2024.