López Gómez, M.; Underhill, L. G.; Brooks, M. Bird Distribution Dynamics 14 - Pied Avocet <i>Recurvirostra avosetta</i> and Black-Winged Stilt <i>Himantopus himantopus</i> In South Africa, Lesotho and Swaziland. Biodiv. Obs. 2017, 8, 23: 1 - 10.