I prefer to hunt the earlier season’s, but this is based on many reason’s. One is that our land is more of a wintering grounds for them, and by the time the later season’s are on, they have really disbanded through out the area. My second reason is hunting pressure. Our land is very visible from a local highway, and everyone and there brother wants to hunt there because of the visibility of the birds, and the neighboring land owners do not say no to anyone. As for calls, I like to use a slate and box call at first to get there interest, and as they get closer, try bringing them the final distance with a diaphram call. But again, it all is dependent on the scenario. The diaphram call is tough, but has a distinct advantage of being hands free, and limiting your motion.