I would try the silent treatment if they were hanging around to find what was calling to them. Remember, a tom gobbles to let the hen know where he's at and usually waits for her to come to him. Stay silent until he gobbles looking for the hen, then call softly and throw in some purrs and clucks to send him a message of being content where you (the hen) is at. The silent treatment in this case would be tricky though, because he may decide to go with the hens that just left instead of trying to find you (the hen). If he started to move off, I'd call again to get him back interrested, but would try using my hand, turn my head, or lip position to throw the sound away from him to make him think the new girl was going the other way. When he stops responding, he could be on his way, or he may have went with the other hens, or he may just be staying put. I'm assuming you could not see him. I'd set for another 45 min to an hour to make sure he wasn't coming in. Then I'd either try to cut him off if I knew where he was going and how the terrain would allow me to get in front of him and if I was sure there was no one else hunting the area. If none of that is possible, I'd either leave and try to get on another bird or get something to eat and come back later in the day to the same area and call to him again to see if he's alone and looking.