While the breeding season may come to an end, the peck order season never ends. Sounding like another gobbler might have caused them to check you out and put you in your place, just what you want to happen. From early April through early May (basically the five weeks of Illinois turkey season), for several years I've had great success with sounding like an intruder gobbler, especially if I have a tom decoy whether it's a strutter, Funky Chicken, or inexpensive foam jake and I place it over a hen on the ground directly in front of the tom decoy. If you decide to try this strategy, let us know how it worked for you.