Welcome. I am no means an expert.Ive only killed two and son killed one, but about the 60ac.We only own 20 and there are always turkeys, the main thing I would be concerned about is you havent heard any gobbling on the roost. I usually hear 2 or three at least,sometimes they roost on my property and sometimes just off of it. Have you tried a locator call as the sun starts comming up? also, I just drive up and stand by the truck,when the sun starts comming up,the crows will be active, this will usually get the birds to gobble. Then I go set up and call,but not too much. Patience. I once had left the blind then came back later,I fell asleep in the blind only to be awaken by the sound of walking in the leaves. That was my first bird.