They were out all day with us, doing things around the yard. All full grown. Sometime around 7:30, my wife went to check on them. And they were missing. Long story short, I found 2 bodies, one only seemed to be missing some feathers, the other, not much damage I could see. But it's not like I looked reeealy close. The other 2 were just missing entirely. Only some feathers lying on the ground. I had seen a fox a few mornings ago, and was keeping them penned until we could be watching them.