Good grief that's... definitely worse than any of the weeaboos I've encountered. But then the fact that she got upset with you for saving the bird instead of just dropping it, and chased you nonetheless? Wow. People like her are one of many reasons I'm not exactly proud to be an anime fan.
Poor little bird, though! I don't know much about birds, but I hope he recovers enough to manage. :<
As an owner of two crazy head banging budgies I applaud your actions. That psycho bitch needs a kick in the teeth, or perhaps string her up to a tree and taunt her while some wild cats toy with her. >_>