Underhill, L. G., Harebottle, D. M. and Brooks, M. (2012) “Second Southern African Bird Atlas Project (SABAP2): Progress report to 6 December 2012”, Biodiversity Observations, pp. 243–250. Available at: https://journals.uct.ac.za/index.php/BO/article/view/171 (Accessed: 21 October 2021).