Could be a dumb kid or a nut case with a bird feeder. Either way, if caught they should have an arrow fired from their bow directly into their butt cheek. That'll teach em!
Well, hope it IS a temporary ignorance or bad aim, rather than a more 'viral' MO. . .
There is enough pain and suffering in life/in the world. To willfully impose more and upon innocent animals, is the kind of ignorance that grows backwards and threatens all.