I saw a documentary on PBS about 4 northern white rhinos (only 7 exist) being moved from the Czech Republic to Kenya. The goal is to get them in a more natural habitat so they will feel more comfortable and reproduce.
The move went well (that was in 2009) and the rhinos are still doing fine and look better than ever. They are mating, but no babies yet.
Here is where the white rhinos are now -
Ol Pejeta Conservancy