Broken wings and legs have always been a problem with birds because, although leg bones do fuse back together if the split is not too bad and attended to immediately, wing bones are a doozy usually leaving the bird flightless or, at best, with irregular/unbalanced flight but they have now discovered that they can use dog and sheep bones splinters as 'pins' instead of the metal ones!
https://www.sciencedaily.com/releases/2 ... 121136.htm