I had a mama silkie hatch out 4 little silkie chicks and as they got feathered in, I removed mama hen into another coop and left the kids with Daddy Roo; he had already been watching out for them, better than their own mama. She had already started roosting overnight and letting the chicks huddle together on the floor of the coop. When I put mama hen in another pen, I also put 2 other hens in with the chicks and rooster. Everyone got along just fine. I noticed one morning that 2 of the little chicks were gone, no sign of them. No damage to the pen/coop or run. Their pen/run is heavy duty coated chain link with chicken netting attached on the inside; no damage here. I have seen and killed snakes in the coops this year, but would a snake get them at night? This morning, I noticed another one of the chicks are gone! The first incident happened on Wednesday and this is Sunday. I am stumped as to what is happening to these little chicks, now I only have 1 of the original 4 chicks left. This coop is styled somewhat like a duplex; the first section is where these silkies are and the back section is where I have another set of silkies, one black roo and a gray hen with 3 chicks that are about 6-7 weeks old. Nothing seems to be bothering these....does anyone have any ideas what might be happening here?