López Gómez, Marí­a, Les G Underhill, and Michael Brooks. “Bird Distribution Dynamics 14 - Pied Avocet Recurvirostra Avosetta and Black-Winged Stilt Himantopus Himantopus in South Africa, Lesotho and Swaziland ”. Biodiversity Observations 8 (May 14, 2017): 23: 1 – 10. Accessed May 29, 2023. https://journals.uct.ac.za/index.php/BO/article/view/421.