The more I see areas like this, the more I think they are close by deer travel routes, also turkey to some degree. I once broke up a fall flock, I got up to where they were and there were berries on the ground. They were clearly feeding on them. Two years ago I found two dandies w/ big berry pods, when season came around the were gone. I thought someone got to them, but I found them, the tops had been nipped off by deer. Sure enough there was a run coming down off the ridge above where they bed down.