Last year I had two toms on the ground just after daylight. They were about 150 yards away. A hen left the roost and joined them. Ater that they would not respond to my calls. I started to use a slate to immitate a fighting purr, along with my version of a "wing thing" slapping against my leg. Both Toms left the hen and came into my gunner. I will definately use it again in a similar situation.