I have seen it at both extremes. Some years you are overrun by birds, some years there are no birds on a particular mountain, at all. You should get in there and scout for a concentration of sign. Being a vast area they tend to be somewhat nomadic. I have seen flocks of well more than a hundred birds. Go in to your favorite place during the evening and call with an owl hooter around the second week of April to locate some gobblers. They answer back pretty eagerly after roosting for the night.