HENDERSON, C.; PRETORIUS, R.; DE WET, D.; VON FINTEL, E. Artificial nest sites used by Southern Bald Ibis Geronticus calvus. Biodiversity Observations, [S. l.], p. 19–23, 2013. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/185. Acesso em: 3 jul. 2022.