Something else , But I don't know what !
I've always wondered if Gobbling activity that slows is more do to the hens and where or not there are doing much calling. Turkeys tend to have times when they are just quiet in areas and others they seem to be gobbling. Remember if there is hens aound the area Gobblers don't have to Gobble to attract hens.I also believe that presure weather fronts play a roll aswell...BT