I disagree entirely with this.The massive decline was not caused by nest raiders or hawks or coyotes.
I watched the same hen nest in my front field in a downed cedar tree 3 years in a row. Her poults were picked off one by one, day by day until none were left all three years… before finally she became a pile of feathers about 15 feet from her nest. Hawks and owls have decimated my chickens, along with coons and foxes. Had to build a Fort Knox to keep them alive. The success story of the hawks around here tied directly to the failure story of the Turkey, in my opinion