I just read an article about a PH guiding in Tanzania.

Usually he uses "spot and walk" trick as the landscape is fairly open.
When unlucky or when the client is impeded, he resort to other tactics.

Scent pushing : he sends blacks upwind of the buffs or the herds to force the buffalos to move downwind toward the hunter.

Calf call : he mimicks the distress cry of a buffalo calf. Most of the time, the herd walks toward the call out of curiosity, and often the males comes the first. A trick also used to have the males leaving the center of the herd to have a better shooting opportunity without risking to maime another buff among the herd.

Umbrella trick : when approach isn't possible due to lack of cover, the PH and the hunter hide behind a large black umbrella and can approach the buffs very close. The PH affirms that for the fun he managed to approach buffs at 2 meters.

Have You heard of or experience this sort of hunting?