Now their pen is fully enclosed and they are no longer free to wander my back yard as they please, but a couple weeks ago something got one of my baby silkies (about three months old). It was in the afternoon and all I found was a bed of feathers behind a piece of wood that was leaning against the fence. Nothing has ever bothered my adult hens before so I just locked the babies away so they would be safe. Three days later it came back and got one of my adult hens. It took her to the corner of the pen and ate her there. The only thing left was feathers and her beak. I live in No. Calif. I thought maybe it was one of the feral cats in the neighborhood because I'm not super close to any fields or anything but a couple of people have suggested maybe foxes, bobcats or raccoons. I know that some animals are known to eat just certain parts of the chicken but whatever this is ate the whole thing except feathers (and in the moms case, the beak.) Any ideas of what could it be that would eat the whole chicken?