DE SWARDT, D. H. Birds of the Bloemfontein pentad 2905_2610: a review over a 30 year period. Biodiversity Observations, [S. l.], v. 8, p. 43: 1 – 17, 2017. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/466. Acesso em: 5 jul. 2022.