Good advice, especially about not calling during scouting. Another thing you want to accomplish is to get to know your hunting spot real well. For one thing,you'll be moving around in the dark a lot. For another, you'll need to know where the fencelines, brushy areas, ditches, and other obsticles and travel lanes are. You want to be sure that when you set up on a hot bird, that he can get to you, and reduce the possibility of getting him hung up.