Oschadleus, H Dieter, Les G Underhill, María López Gómez, and Michael Brooks. “Bird Distribution Dynamics 9 - Red-Billed Buffalo-Weaver Bubalornis Niger in South Africa and Swaziland”. Biodiversity Observations 8 (January 23, 2017): 7: 1 – 8. Accessed July 4, 2022. https://journals.uct.ac.za/index.php/BO/article/view/405.