SHERLEY, R.; DYER, B. M.; UNDERHILL, L. G.; LESHORO, T. M. Birds occurring or breeding at Robben Island, South Africa, since 2000. Biodiversity Observations, [S. l.], p. 69–100, 2011. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/132. Acesso em: 2 jul. 2022.