You can look at our roads and tell deer can't think. If they could think they would stay off the interstate where there's thousands of 4000 lb. hunks of metal traveling 80 mph in both directions. If turkeys could think, they would nest in trees instead of the ground where most predators spend their time 24 hours a day.
Both are wired to react, not think. Deer react to what they smell, hear and see. Turkeys react to what they hear/see.