The habitat was set up in the pheasant restoration areas, from input by the bioligists, and other qualified people. It was set up in a limited area, and as such, no one really expected the birds to multiply to areas outside of the great habitat. How ever even with the custom habitat, the pheasants in most areas were decimated by raptors. Contrary to some beliefs predators are still able to influence game numbers, even in great habit. Non believers, look no farther than what the wolves have done out west. And if habitat is so poor why do the predators seem to be able to do so well?