I agree with Wa Hunter, probably henned up, or just not in the mood. The next day they might tear your head off. SOmetimes too you have to buck the system and try something creative. Lat year they went silent for three day or more. So after that I chose to grind my strikers down to nubs by calling so aggressively and hard that I finally woke them up enough to start back up. I had the entire hillside gobbling. Tagged a bird by 10:30 doing that. So just don't be afraid to try something new every now and then.

Good luck