Symes, C. T., and J. Hirons. “Red-Winged Starling Onycognathus Morio Sourcing Nest Material from Live Klipspringer Oreotragus Oreotragus”. Biodiversity Observations, Apr. 2014, pp. 122-5, https://journals.uct.ac.za/index.php/BO/article/view/226.