PCP, when I lived and worked in the woods, and turkey hunted, Greene, Hale, Sumpter Cos I, and a LOT of other turkey hunters felt that the turkey populations were down 30-40% overall in those areas in the mid/late 80's.
I imagine if the places in those counties you hunted were majority clear cuts with no roosting spots then there would have been a decrease in the number of turkeys that were hanging out in the area. It doesn't mean the population decreased in the entire county