Underhill, Les G, and Michael Brooks. “Bird Distribution Dynamics 1 - Hamerkop <i>Scopus umbretta</i> In South Africa, Lesotho and Swaziland”. Biodiversity Observations 7 (December 8, 2016): 1–6. Accessed May 11, 2025. https://journals.uct.ac.za/index.php/BO/article/view/380.