Nile crocodiles occur virtually throughout tropical Africa wherever suitable habitat exists. In Namibia populations occur in the major river systems in the North of the country, including the Kunene, Kavango, Kwando, Chobe and Zambezi Rivers. The crocodiles of the Caprivi region have been relatively well surveyed. A combination of boat and aerial surveys estimate approximately 529 adult female crocodiles and 417 adult male crocodiles for this region (Box 1). West of Caprivi information on the status of crocodiles is relatively lacking. Together the upper Okavango and the Kunene River probably support a similar sized population to Caprivi.