Went out to check on my duckies today and it appears my free range rooster and my Indian Runner drake have been fighting through the mesh that encloses the duck pen. Poor Gumbo (the duck) now has a nasty split on the end of his bill. I washed it in clean water and packed it with flour to stop the bleeding (per directions on another site). Is there anything else I can do for him? I'm kind of broke right now, so I'd really prefer not to take him to the vet if I can help it.