Have you still got the VERY FIRST photo of your tiel (or any other bird)? I don't mean the best. I really mean the very first photo.
This is the first photo I have of my tiel. We had just come home from the breeder.

Yes, he looked cheeky even as a baby, and he stayed that way! He was about 10 weeks old, just weaned.
Sorry I have to use Box.com instead of Photobucket, but PB is down for maintenance right now, and the free version of Box.com doesn't allow me to embed on websites.