1. Terrestrial Bird Conservation Programme, BirdLife South Africa, Pinegowrie, Gauteng, South Africa
2. Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences, University of Cape Town, Rondebosch, South Africa
3. African Climate and Development Initiative, University of Cape Town, Rondebosch, South Africa
4. Applied Behavioural Ecological & Ecosystem Research Unit (ABEERU), UNISA, Florida, South Africa
5. School of Animal, Plant and Environmental Sciences, University of Witwatersrand, Johannesburg, South Africa