Dean, W. Richard J., Erik Åhlander, and Ulf S. Johansson. “Avian Type Localities and the Type Specimens Collected by Johan August Wahlberg in Southern Africa”. Zootaxa 5134, no. 4 (May 12, 2022): 521–560. Accessed April 4, 2025. https://mapress.com/zt/article/view/zootaxa.5134.4.3.