Whether you want to believe it or not it does disturb other wildlife when you fly a helicopter down close to the ground to shoot at something and if your flying and not getting close to get an advantage well your probably stupid to start with. Nobody has to shoot a cow to kill it but they dang sure get scared and run into and over fences with helicopter pressure that is not in on them in a herding way. I think the helicopter can be done in a effective way but let's face it hogs are here to stay and what's happening more and more is rich boys want to shoot pigs from helicopters so the pilot has to produce pigs and that leads to crossing boundaries and unnecessary pressure many times.
so your telling me you never crossed a single fence you werent suppose to dogging pigs? cause if that what you saying i call BS! cause if you are running dogs sometime sooner more then later your gonna cross a fence you werent suppose to!