The White or "wide" rhino is far from extinction and is not really threatened. Almost every concession has one for the visual effect of the bush, and the occasional dart hunt. Countless concessions have a few to as many as a dozen. They move the bulls around from farm to farm for breeding and darting.
The Blacks or hooklip are on the rise in a big way as well. Certainly not in the numbers the white rhinos are at but it will get there. The main difference in the reason is that the whites are more docile and functional on a hunting concession. Although not to be fooled with, they have destroyed several vehicles on ours.
The blacks have a more notable irritability, and much more mobile skill set. They become more of a concern in the bush for the hunters and workers. For this reason they are not as in demand. Further the Nature Conservation has significantly more regulation for ownership. Nonetheless there are more and more places that are seeing the Black Rhino on private hunting concessions. This will be where the future is at. Private ownership on hunting lands will be where the success comes from. There will be hunting opportunities for the black rhino in RSA. Big old bulls beyond breeding age that can fetch enough money to support anti poaching and additional breeding projects.
Fortunately there are enough people willing to part with 250k-USD for the chance to harvest one. This may look silly to some, shooting a species which is on the brink, but its a proven method of a harvestable surplus to support the recovery effort.
correct me if im wrong but originally the "Big 5" was ment for the black rhino as it is more dangerous than the white but as the blacks numbers became to low hunters just moved to include the white as a rhino for the "Big 5"....know in my readings from some of the "old time" hunters they definitely had much more respect and gave the blacks far more room when going around than the whites cause they had more of a temper....
