Hello Moetrout, Just found your thread and hope your roo is well. 3 days ago, I had the same thing happen to my 6 week old chick who flew over the 4 ft divider fence between the chicks and hens. When I found her, her scalp was gone. Horrifying, but I think the hens thought she was a stranger/predator. Based on all I have read here, I cleaned her up at various times with soap & water, bactine, iodine, and hydrogen peroxide. Then I would add the neosporin. I did make her an electrolyte solution (found here) and gave her antibiotic in her water. I had her in towels, but yesterday moved her to a tub with pine shavings, waterer, feeder and mirror (so she wouldn't be lonely) so her environment would not be so alien. The one thing she has been eating is chick feed mixed with lactobacillus (whey from yogurt) and molasses. This was a special treat when she had pasty butt. I have also added Rescue Remedy, putting a drop on her beak. I was interested to read that the yellow/green on her head might be the healing process - I have been trying to scrub it off, but causing more bleeding (and peeping!). She is living in the tub in an extra bathtub for now, although I take her out to visit her sisters everyday for a couple minutes. Their reaction is strange. All is quiet, they gather to the gate to look at her, then go about their business. She just stands there or maybe scratches a bit.
If you have the time, I would love to hear an update on your little roo. What worked for you?
And if anyone else wants to chime in, I would love to hear anyone's experiences with Bach Flower remedies and chickens. Today I started putting some Rock Rose in the water of the chick, the other chicks and the hens. This is suppose to help relieve the terror experienced by all who heard or saw the attack. Wishing all the best to you and your little roo.