If you aren't careful, you may end up with 4 cockatiels! Really kind of the person to offer you their tiel since they are moving, and if possible, I hope you are able to get more information about this cockatiel. Really hoping that Pepper is out there somewhere! Either somehow surviving outside or in someones home safe and sound! I'm kind of leaning towards the idea that she's hanging out around the school, but who knows! Maybe someone did take her in?