"A vagabond hunter" - Sten Cedergren. An amazing story about a man from Sweden, he was in the Korea war and then ended up in Zimbabwe working as a PH for 35 years. He died some years ago, I visited him in 1994.
Some of the books about the life of Baron Bror von Blixen are intersting stories.
I like "Hunter" by JA Hunter. And there are more....