But, like I said, the locals prefer to blast away. My buddy told me that some local villagers chased a mamba into a tree and basically unloaded multiple shotgun rounds into the branches to kill the critter. They knocked down all the branches, but didn't get the snake. They cowered in fear for days because they thought the snake was going to come after them for revenge. That's the mystique of that particular animal to the residents of the South of Africa.
I've lost touch with my friend (he's one of those "visiting" professor types who is always on the move) but he spent a couple years down in the jungles of Honduras, Panama and Costa Rica in the early 90s and never came across a Bushmaster and only a few Fer-de-lance specimens. Sounds like their evolving habitat is in pretty bad shape.
...Too bad, the mystique, ignorance of these animals, over ride the facts...