where are the turkeys
I would hunt west to the river and look for sign. if that is fruitless i would head north along the woods and river. they have to have water and they are probably getting it from the river. is there any food in those plots? if there are oaks along the river they maybe eating last years acorns for food. the noise of others on the property may have pushed them out of where you were seeing them prior. worst case they flew across the river and are feeding and roosting over there.