Over the last week, there has been a change in behavior. I started seeding hens in smaller groups. They would still feed in my spring oats, but they would come into it at different times from different direction one or two together. This morning, there was only one hen feeding in the spring oats and she was only there for about 30 minutes.
I think we have come to the time of year when most hens are not incubating their nests. This should make gobblers more vulnerable to calling. I may start hunting at the farm next week.