In Stewart County where I'm doing most my turkey hunting, the gobbling & Tom linear distance movement normally drops off dramatically in early May. Toms start grouping back up, much like bachelor groups of buck deer post-rut.
IMO, the main reason the statewide kill is as high as it is is because of an above average statewide hatch & poult survival 2 years ago. But instead of 3 or 4 weeks of "prime" spring hunting, we had 2 or 3 weeks. This should help the turkey population, as the slaughter would have been much more dramatic if the season had opened @ April 1st (as in the past).
Seems to me, the birds are much like most years, but we just started hunting them a couple weeks later. That said, for whatever unknown to me reasons, some days they don't gobble, some days they do, and this year has been a year of much less gobbling.
One more thing:
Our perception of less gobbling may be at least somewhat a false perception.
When the season opened 2 weeks earlier, a turkey gobble could be heard many times farther than it can typically be heard in late April.