1. Department of Scientific Services, Gorongosa National Park, Sofala Province, Mozambique
2. Vultures for Africa Programme, Endangered Wildlife Trust, South Africa
3. Raptor Research Center, Boise State University, Idaho, United States
4. Intermountain Bird Observatory, Boise State University, Idaho, United States
5. Department of Biological Sciences, University of Eswatini, Kwaluseni, Eswatini
6. Mammal Research Institute, Department of Zoology & Entomology, University of Pretoria, Pretoria, South Africa