Where I hunt in MS I've found that gobbling pretty much correlates to the number of gobblers we have. In years where we had a good population of gobblers they would gobble at a owl hoot early morning religously and continue to gobble until well after fly down. As the population of gobblers decreased the gobbling stopped, they will rarely gobble at a owl hoot now and many times never even gobble on the roost.
They just don't need to gobble, there is very little competition for hens and they know they will hook up shortly after fly down.
They just don't need to gobble, there is very little competition for hens and they know they will hook up shortly after fly down.