1. FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
2. BLOOM Association, 62 Bis Avenue Parmentier, 75011 Paris, France
3. Centre for Ecology and Conservation, University of Exeter, Penryn, TR10 9FE UK
4. Animal Demography Unit, Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa
5. Centre for Research on Evaluation, Science and Technology, Stellenbosch University, Stellenbosch 7600, South Africa
6. Environment and Sustainability Institute, University of Exeter, Penryn TR10 9FE, UK