Cory , Movement and your eyes. Although most hunters don't beieve they don't move , most do if sit back and ever watch another hunter thats close by. I used to shoot video and it was always suprising how much a hunter moved when they did not believe they did.

Also your eyes, A turkey can focus on the whites of your eye's. I've had the birds Bust just from moving my eyes from one bird to another. Take a Black object and put to snow white dots on it and see how the white dots stand out...BT