Underhill, L. G., M. López Gómez, and M. Brooks. “Bird Distribution Dynamics 3 - African Spoonbill Platalea Alba in South Africa, Lesotho and Swaziland”. Biodiversity Observations, vol. 7, Dec. 2016, pp. 1-6, https://journals.uct.ac.za/index.php/BO/article/view/389.