It can happen during fly-down time in the morning. It will occur after a flock has been separated, which is a traditional autumn tactic of course.
You flush the group, you set up at the scatter site, and you try to call gregarious birds back . . . using a kee-kee or kee-kee-run if that's the legal either-sex fall turkey you want. Call like the fall bird you're trying to kill.
Here's a great video demonstration of the kee-kee and kee-kee-run provided by WoodHaven's Jimbo Lindsey calling on WoodHaven Kee Kee Disc.