I have a feral kitten that was part of the TNR system (which I am all for)! My question is why is the ear tipping necessary? I understand that it is an identification mark if she was ever returned to the humane society they would know she had been spayed! Can't they tell some other way? My kitten has quite the bit of her ear missing from the tipping method, you would think that would hurt and it almost seems cruel! Yet many people say it is not? Don't get me wrong i am all for TNR to stop the overpopulation of ferals!