If I were you I would keep a eye on them from as far away as possible. Then wait till most have dropped, it will be soon, I hope. Try and pick a day after you've seen them bald and when there not there. Remember don't go to early or you will scatter those bulls and the concentration of antlers will not be as good. Also remember your not the only sportsman who knows those bulls. Pretty tricky to try and pick the right day. Good luck to you.