That’s awful – I just can’t imagine how these “birds” can be so vicious – if it were for food I might understand, but this is just plain mean. I am angry with my blues at this point because they won’t decide to go ahead with the nest they have completed – want to keep jumping around checking out other boxes. BUT, I love them to pieces, just like children we love all the time and don’t like at other times. Hang in there – you can’t win if you don’t try. But I can understand your frustration.