One of our hens was attacked last Wednesday morning by a dog. Her tail feathers were pulled out and it appears some flesh is missing from her hiney. It looked like raw hamburger We sprayed the wound area with iodine and put her in a rubbermaid tub with newspaper in the house to keep her in a sterile environment. We considered putting her out of her misery, but our little girls wouldn't have it. She perked up after about 48 hours and is now eating and drinking and pooping. Damage is deep, but doesn't seem to involve internal organs. It is now black and crusty, no maggots visible. It is now Sunday and she is still living in the house. My daughters are taking her outside for a little in the afternoons to get some fresh air and exercise. Our chickens free range during the day and our rooster ran her off this afternoon. My questions are.....when should we put her back with the flock and will they let her back in? Will her tail feathers grow back? This is our first experience with chickens and we are loving every minute of it, except for this incident.