Sometimes a henned up gobbler will follow the girls around to sevice them. later in the morning when they are all serviced and happy he may end up back at the roost site if you call at fly down and shortly after. They seem to be looking for the hen that never materialized.
Twice I have killed a nice tom using this tactic. One bird was comitted to a large field, never leaving it after flydown (because the hens didn't) only to return to his roost area four hours later. I had glassed him the previous day. Before he headed back to his roost the next day I snuck in to greet him on his return.
The other was in the woods after flydown he followed the hens off to wherever, He was back gobbling his fool head off five hours later. I was close by and set up on him...
Both times I was off prospecting other birds only to return to the start of my day to change my luck.