Not mine but my grandmother had 7 chickens all fully grown and laying and one rooster. About a week ago I got a call from her saying a predator had gotten her chickens all except 2. They had been eaten from the butt first. She got the two live ones inside a dog cage and waited for me to get over there the next day to clean up. When I got there there was nothing left of the killed chickens except for the rib cage. After we cleaned up the next night the predator came and finished off the last two In the same way. Ate half of each bird and came back the next night to finish. Her chick coop was like a chain link dog cage about 10ft tall and at least 10ft wide, it had a tin roof and tin covering the back and one other side. She has no plans to get more chickens she's getting older and it's harder for her to take care of them but she loved them. She put out poison and the predator ate that too but there's no sign of a dead animal any where I'm unsure of what kind of poison I'm assuming rat poison. But I'm concerned about what kind of preditor could have done it.