Most of the young ones I raised this year were killed by hawks, when they were young. Most of the wild ones in my area are probably killed the same way, but a few years ago an owl killed three half grown ones in one night, on the neighbors property. An increase in predators, will result in more prey being eaten. Then you have the increase in bobcats , fisher and coyotes. All these predators have to be eating something. Did see on TV the other day some town had a lot of turkeys in the town. Not hard to figure out that, that may be because of less predation in town. While rabbit hunting in the late winter we find a few that are taken off the roost by owls, usually hens.