There is a very adorable JRT across the road from us, who has come across this highway (55 mph) to visit my dogs before, but just today, he decided to attack one of my hens. He got into the coop while she was on the nest box (as near as I can tell) and dragged her about 50 feet away. There are several spots where she must have been doing her best to defend herself, feathers everywhere, but she ended up on the ground, on her back, with a definitely broken wing and bloody spots all over. And this, only after my husband chased the dog back home. My initial response was to kill her, put her out of her misery, but after I turned her over to inspect the damage, she got up and started walking around. So for now she is in Chicken Hospital, but I really don't know what to do for her, other than to give her time to see if she survives. The neighbor who owns the dog gave me some penicillin and a syringe, and told me to bathe the bloody spots in the watered down penicillin. Other than that, I am keeping her in a crate in the garage, with food and water and a red heat lamp. I have no idea if she has any internal injuries, but am suspecting that she does. My question is, if she is still alive in the morning, do you think she will recover? Is it more humane to just kill her (which I don't know how to do!)?