So sorry to hear you've lost some of your chickens. I just lost my first this past week, Goldie, was just a year old and my best layer. Coon got her I guess. So sad to see her laying mangled in her nest. I can't imagine the poor things "cooped" up in their coop with no escape and a predator in there. I have the coop close to the house and didn't hear a thing! I just noticed yesterday another one of mine has a 2" laceration on her side so she is in the basement bathroom getting TLC (would you say I've already turned into a chicken lady?!) I have guilty feelings too...didn't think a 3" hole would be big enough for a coon or other predator. Hugs and kisses to ya.