It's very sad that such drastic measures are needed, but I agree with this method. Obviously it's sad to see this magnificent beast without it's trademark horns, but if it's the only way to curb poaching of rhinos in Zim, then it's the way to go. Luckily, in South Africa, this problem is mostly under control and Rhino populations in the National parks is on the incline, where you can see this beast, horns and all! Hopefully in a few years, we will see the same thing hapening in Zimbabwe.
The first time I hunted in the Zambesi River Valley in the late 80's I was fortunate enough to see a couple of black rhino in the wild. They were having real big problems with the poachers from Zambia at that time and any poachers encountered could be shot on site.
I count myself fortunate now to have seen those rhino in the wild before they started darting and moving them.
When placing a trail camera don't just look for a well used trail. What you want to do is look for a freshly used trail off by itself that goes from a north facing ridge, thick forest, brushy knob or some other similar bedding area to a food source. Don't forget water sources. Especially in the summer months the deer need water so look for a good trail going down too a creek surrounded by thick cover and place the camera 100 yards up from the water source.
Scent control is very important...