1. Branch: Oceans and Coasts, Department of Environmental Affairs, PO Box 52126, Cape Town 8000, South Africa
2. Animal Demography Unit, University of Cape Town, Rondebosch 7701, South Africa
3. South African National Parks, PO Box 176, Sedgefield 6573, South Africa
4. East London Museum, PO Box 11021, Southernwood, East London 5213, South Africa
5. Department of Zoology, Nelson Mandela Metropolitan University, PO Box 77000, Port Elizabeth 6031, South Africa
6. CapeNature, 16 17th Avenue, Voëlklip, Hermanus 7200, South Africa
7. Durban Natural Science Museum, PO Box 4085, Durban 4000, South Africa
8. Ezemvelo-KZN Wildlife, Private Bag X01, St Lucia Estuary 3936, South Africa
9. PO Box 61029, Bluewater Bay 6212, South Africa
10. CapeNature, Private Bag X29, Rondebosch 7701, South Africa
11. Ezemvelo KZN Wildlife, Private Bag X3, Congella, Durban 4013, South Africa
12. School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa
13. Addo Elephant National Park, South African National Parks, PO Box 52, Addo 6105, South Africa
14. Percy FitzPatrick Institute of African Ornithology, University of Cape Town, Private Bag, Rondebosch 7700, South Africa
15. Anchor Environmental Consultants, 8 Steenberg House, Silverwood Close, Tokai 7945, South Africa