It sounds like he may just be seeking company after be a loner for most the year. If he is indeed henned up already I fear that it may be hard to pry him when season opens. One trick that may get him is using multiple jakes or a full strutting tom decoy (CarryLite Pretty Boy or Primos' B-Mobile), and use the call which has been refered to by many as the excited purr, or thehen in "heat"purr. It is a louder, longer purr made in quick succession that will simulate a hen in dire need of a tom's attention. this may bust up the tom from his harem, and if he see
s another tom (your fanned out decoy), he will get jealous and come to have a show down. You may be able to make a fighting purr using two push button calls making a loud, continous purring sounds alternated on each call. Knight and Hale has a fighting purr kit out, that comes with the two calls and detailed directions. You may be able to pick up a video that demonstrates this and shows it in live film. Good Luck!