I had a baby possum that did the same exact thing, except the opening for hte bill didn't open up enough for the bill to fall out. Once I got home I cleaned up the bill and used some Devcon 2 ton epoxy. I smeared it in the bill recess into the crack and all over the face. I have yet to have a problem with it since. I hope that helps, I will take some pictures when I get home. Its not pretty but that bait has too much mojo to retire, it's a baller.