One thing that I have learned is if there is a hen with a tom and he seems pretty commited to her he wont leave her. That said, I have had toms come in and have a hen with them and he just follows that hen where ever she goes and alot of the time the hens avoids the hen decoys because they dont want the competition for breeding. Last year I had a bird patterned and set up on him perfect along a fence row and he came right on time. I had a hen decoy out and as soon as the hen that was with him seen the decoy she started to cut back towards the woods in the opposite direction. But I have also had hens come right into the decoy bringing tom with her and have been successful.