dep214,

You are right the game animals do not have " free migration" . But some of these farms encompass many hundreds of acres and some in Texas and other western states have several thousand acres. Like a said above I mostly only hunt russian and ausrtrian boar at these farms. I know of no area where there are truly wild russians and austrian boar. I don' t think we would whant these animals loose in our national and state forests and WMA they are really, really destructive, and our prolific breeders. Once they are grown they have no real predator problems.
I however disagree that this is hunting. Is it a pack in trip in the Rocky Mtns, no. When we hunt game farms I believe the amount of acreage, and terrain makes or breaks the hunt. Most of the boar get the picture, and no what is going on when we enter their area, some do not and we ignore them and look for a " wild" one.
I do however avoid the farms who bring in the game at your request to hunt. I look for places that let the animals breed and roam around on the most acres.