Well, lost the first chicken. I was helping hubby with dinner when I saw the dog trot past the door with something white and chicken-like in her mouth. Sure enough, she had a bird. It was still alive, some broken feathers and one small puncture hole. I didn't feel anything broken, but she didn't open her eyes much and wasn't fussing when I picked her up, and we didn't know if she was just in shock or mortally wounded, so we put her in a box in the garage next to the others. She passed after about an hour. I wish I had known how bad off she was. I almost put her down right after the accident, but then I just didn't know and couldn't do it if it was possible she might recover.
Don't know how or when she got out of the garage. We've been using the outside water faucet to refill the water, so she could conceivably have been out for a day or two. We might have missed her when we had outside play time Saturday. Might have been something else attacked her and the dog just found her. Don't think so, though. Dog loves to chase and catch things. I've watched her catch a mouse. She plays with it like I have heard cats do.
And this is why I got so many birds that I can't tell individuals and don't give them names. She was one of the 7 or 8 white ones. We planted a tree that had been in a pot over her, next to the coop. The baby chicks we lost early on are there with blackberry bush seedlings.