Speaking of the long horns of the Gemsbok, I had several foldable ground blinds made from hog panel covered w/camo burlap that was very light weight, one of which I had found a really good location so left it in place.........until it obviously irritated one of the resident Gemsbok. I found that blind up to 30 ft. from where it was located numerous times, tried staking it down w/tent pegs, folding it up every time I left and pushing it back in the thick brush, only to come back and find it 20-30 ft. away, sometimes lodged in surrounding growth, including cactus. Obviously, from the distances involved and locations the offending oryx was using his horns like an atlatl to launch the 4' x 6' panels. I would loved to have caught him/it in the act just to watch the whole process, but never did. Finally gave up and moved it elsewhere.
While the Gemsbok had free range over the 5000+ acre ranch, that was the only location/blind that they bothered???