Gracie's not really a bad girl--I know, you feel so bad for the little animal/bird, but instinct is instinct. Hounds aren't the only ones; huskies are notorious for their strong prey instinct. We've picked up many little bodies over the years. Fortunately Star is an excellent hunter, fast & efficient, so at least I know they weren't left there injured & in pain. I'm so sorry you had to see the little bird get hurt. I think it's admirable that you took it to a nature center - at least it has a chance now.