First day was my bantam roo. There was a bird eating on him that I barley caught a glimpse of. I thought I had a hawk problem. Next day one hen and one roo dead inside the coop. Hen missing a head and roo appeared untouched. This morning one hen wedged under the fence and insides ate out, her head was inside the coop and hollowed egg laying on the floor. It wasn't cracked in half or smashed, it was just opened up on the end. I narrowed it down to a night time predator since I was out feeding my rabbits late last evening. BTW, My chickens and rabbits are in the same building. Rabbits have been untouched. Im going to get a live trap and try to catch whatever it is. What type of bait do I need to use???