Instead of moving your body, try going to the range and switching trigger arms. The only thing that will be moving is your gun, and most birds will tolerate that...

On another note, if you're getting birds fired up ~9am, that would indicate the hens are going to nest quite early. If that's the case, I would try to get as close as possible to them on the roost, and then start ambushing the birds after flydown.

I've found it's always easier to kill a bird in areas they frequent on a daily basis, simply because they are more comfortable with those surroundings. Every time you "call" a tom to an area of the woods he does not visit on a somewhat regular basis (for whatever reason), the bird's survival instinct is usually higher than the urge to mate...