Answer: Since the damage doesn't extend all the way around, there's hope for the tree. As long as there is a section of bark extending from root to top, the plant will be able to transport nutrients. I would trim the damaged bark--simply cut away the ragged edges so it's fairly smooth. Don't use any wound dressing--just let the tree heal naturally. (Wound dressings don't really help, and they can actually slow the healing process.) Now, what to do with that cockatoo?!?
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