Yesterday a predator came into my yard on two separate occasions and killed 2 hens. A malay hen and a sumatra bantam. It came and killed the sumatra bantam at 9:00 in the morning and it came back and killed the malay at 4:00 in the afternoon. It killed them and took them away faster than i could get outside to see what happened. The malay hen left a very short trail of feathers behind so she was killed fast. The sumatra put up a bigger struggle and left a long trail before she was killed. There was no blood or large feathers in the trails. I found both of the bodies in the woods behind my house partially buried in the same spot, only the heads and organs were eaten. Predator had to have jumped a 5 foot fence to enter the yard and both hens were killed silently. No alarm calls or sound of struggle. What could this be???