My chickens free range. Even when i'm not home. They've been doing this for almost 3 years now. I them out at usually about 7 a.m and shut them in at 8 p.m. This morning, I had to leave very early (5 am), so I opened the coop door right before i left. I come back home, drive up the driveway and see one of my roosters (a large 5 month old wyndotte) laying in the yard dead, with feathers all around him. I go up and investigate. No bite marks, no signs of bleeding. Nowhere. I opened up his wings, looked on his underside, everything. Nothing. Just dead there with feathers around him. I walked across the yard to the coop to do further investigations. I see one of my 3 month old rooster dead right by the coop. Same thing. No blood loss, only feathers around him. I look around the run. Found one of my 4 month old hens dead. Same thing. The only crime scene I spot that the chicken was eaten(the chicken was not by the feathers) was only one chicken. What animal does this sound like? An animal that wouldn't eat something it kills? Just leaves it there?