Yesterday I rescued a wood pigeon that was shot by a teenage boy. It hasn't lost many feathers . I think the bullet is in the chest region; I don't know if it's still there or if it has come out. The bird has been very still and is in a cardboard box at the moment. It was sick in the night and there is a bit of blood by its beak. The bird has stopped shaking now. Any advice on how to help it?