However, it is possible that the bleeding may resume, if the bird brushes the damaged feather against an object or preens it. For this reason, many people recommend pulling the broken or damaged feather. Others pull the broken feather so that a new one can begin growing. If the feather is not actively bleeding, it is not an emergency and you may feel more comfortable waiting to have your vet pull the feather. However, a bleeding feather cannot wait.
Birds have much less blood than humans and can literally bleed to death from a broken blood feather.
You have to act immediately. First towel the bird and then examine the wing, trying not to touch the broken feather. You can also try a tissue glue or even Krazy Glue. Put pressure on the end of the feather, being careful not to break the portion of the shaft which is left. A hemostat, tweezer or even a pad or folded cloth can be used.