DE SWARDT, D. H. Egyptian Goose Alopochen aegyptiaca hybridizes with Common Shelduck Tadorna tadorna. Biodiversity Observations, [S. l.], p. 63–64, 2010. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/105. Acesso em: 7 jul. 2022.