We suffered a wild dog attack. They killed one girl and the other girl and our rooster were missing. The second hen just showed up in the coop (still haven't seen the roo) but she's got a pretty bad gash on her back. It looks like a flesh wound. I don't see any serious internal damage. She needs stitches to close the wound. Any advice on how to proceed? What sort of cleansing should I do? What threading material? I know lots of you here have had to sew up your girls before.