Funding for this research was provided by:
National Science Foundation, United Arab Emirates (NA)
FitzPatrick Institute of African Ornithology (NA)
Received: 4 March 2020
Accepted: 19 August 2020
First Online: 3 September 2020
: Permission to conduct this research at the various field sites was granted by the Department of Environmental Affairs, the Department of Agriculture, Forestry and Fishery, and South African National Parks. All research protocols were approved by the Research Ethics Committee (Animal) of Nelson Mandela University.
: Not applicable.
: The authors declare that they have no competing interests.