RE: deer calling
Yes, I use a grunt call and a "can" doe bleat call, mostly while still hunting. Deer have incredible hearing, and they're very social and very curious. Calls will work even in heavily hunted areas if used correctly, and if you're lucky. My favorite approach is to still hunt into the wind in heavy cover, grunt or bleat once every 15 minutes or so. Be very patient. I've observed deer, especially bucks, just stand there for a long time. Wait for them to make a mistake.