Elephants competing for food seriously damage vegetation in the Ngulia Black Rhino Sanctuary in Kenya?s Tsavo National Park West. This is a protected stronghold for the highly endangered Black or Hook-lipped rhinoceros which is now a CITES Appendix 1 listed species. From the original three rhinos captured from the Tsavo West area, a further three, then 15 more were introduced from the Nairobi National Park population. Now covering an area of 67 kms protected by a solar powered electric fence, numbers have increased to over 70 individuals (March 2006). Around 5 new calves are born every year. Unfortunately numbers of elephant and buffalo are also increasing in the sanctuary and are beginning to threaten availability of water and also damaging the vegetation