ANDERSSON, R. Plumage variation of males in Scandinavian populations of European Stonechat Saxicola rubicola. Ornis Svecica, Lund, Sweden, v. 29, p. 76–83, 2019. DOI: 10.34080/os.v29.19691. Disponível em: https://journals.lub.lu.se/os/article/view/19691. Acesso em: 25 jul. 2021.