Mnmt, it depends upon where you're at. Up north, the evergreen plantings that Pheasants Forever has promoted over the years are very important as they encounter heavy snow and high winds almost every winter. Further south, like most of Kansas, these plantings may only be beneficial 1 out of every 10-20 years. Their capacity to spread and escape their planted rows, invading the surrounding countryside is a serious problem. If you've seen pics of eastern and central Oklahoma and Kansas, you might understand the millions of acres that have been degraded by these plantings. Here, patches of kochia, Russian thistle, CRP, and heavy crop residue can usually replace those plantings and avoid the negative results that they cause. The pheasants only occasionally use those plantings, and then usually during the worst of weather. They are expensive to establish if only needed for survival so rarely.