Put a decent stick in a piper supercub or cub, as well as a number of other craft, and it's not at all difficult to haze animals. I watched a rancher south of Juntura use a cub to gather his cattle in some very rough country, he was often 10-20-40 feet above the ground. After about an hour, he lines up on a two track, gently lands, gets out to relieve himself, hops in and takes off. Later that day his cowboys, where they could use horses, drove about 250 head off the mountain he had moved where they could work. Very effective.