re: How do I tell if I have Turkey's on my land

If you haven't been hunting them and they aren't already there, then the land probably isn't ideal habitat for them. Placing birds there isn't going to change that, they'll just head for greener pastures. All you can do is try to make the land more hospitable for the birds and hope they show up and stay, that would obviously take time and isn't even guaranteed to work. Walk the property though, you should be able to find some sign if they're there (feathers)

The fact that you haven't seen any while deer hunting probably means they aren't there. It was like clockwork when I hunted as a kid. Turkeys are out in deer season and deer out in turkey season