I never want to set-up closer than 100-150 yards to a active roost tree.

I would try to find a elevated position where I could see the roost tree and pattern them from a far (use binos if necessary).

The dominate hen is the one who determines where they roost.

The long beards are normally the last to roost......................

Take your time and keep your distance, until you have them patterned again.