Francke-Bryson, Ursula. “Expanding the Boundaries: Breeding Range of Red-Billed Firefinch Lagonosticta Senegala in Namibia Extended to the Atlantic Coast”. Biodiversity Observations 7 (March 29, 2016): 1–9. Accessed May 28, 2022. https://journals.uct.ac.za/index.php/BO/article/view/312.