I have heard many different opinions on how old a cockatiel life span is and I'm as in the dark as I have ever been on the matter, and my bird Russ is going on 16 now. I'd love to have some frim idea so that I don't receive the shock of my life one morning when I take his covers off.
Thinking about the day he will be gone is not very worrisom, but I know that the day he actually is gone I will be an absolute mess. I grew up with that ornery old man. He might drive me crazy on occasion, but he's my bud and I love him. He does the "wolf-whistle", imitates the sound of my sneeze and the sound I make to call the cats.
He can whistle the intro to Guns-n-Roses "Patience" like a pro. He kind of muddles it now, but he hasn't actually heard the real song in a while.