Actually a deer is only able to see roughly 12 feet clearly, its not their site you have to worry about, its that long nose and the big floppy ears. As for turkeys, they are the hardest to kill. They have excellent eyesite and can see a twig move 30 yards away. Since they cant smell worth the crap scent control isnt needed for turkeys, but they do hear very well. Now killing a turkey with a bow is extremely hard, I got my first turkey with a bow last fall, I have been turkey hunting for 16 years. Its easier to kill a deer with a bow than it is a turkey.