I would get in there before light and use a locator call and see if you can get a bird going on the roost. Then decide where to set up in relation to the roost. If they don' t come your way, they make a lot of noise in the am you should be able to follow them to see where they are going. The following day set up along the route they took the day before. If you get there late you have to be careful, stay in the trees and watch the field edges. If I' m late I usually just wait until I know the birds have come off the roost before hunting them. If they are in the tree and it is light they will bust you every time.