Your chances of a sighting are the same as those of any other person on any given day in the sanctuary you are visiting. We make all efforts and are assisted by experienced guides in spotting animals. Patient watching is usually rewarded with many observations. However, this is an area where they can wander around at will, and it is next to impossible to predict their presence. We cannot thus, guarantee sightings of any particular animal.
If you really want to see particular animals with guaranteed sightings, you need to go to a zoo, not a sanctuary.
What is this life so full of care we have no time to stand and stare
-- W.H. Davies