I have had these chickens for 1.5 years. They have never had any trouble. I have a German Shepherd who loves them as friends, and the two Shepherds next door don't bother them either even when they are roaming. Lucy got out (they are escape artists) and when I got home after dark I found her dead in the backyard (no fence) with her neck broken and some raw areas (maybe bitten or just feathers pulled out). I know I have hawks, fox, coyote, raccoons, etc. I live in Maine. I don't see those 4 legged pests with the 3 dogs around. I was wondering maybe a stray dog? Head was attached and she was left. There were feathers scattered. Could be be something else?