Depending on their health, history, breeding, and many other factors, Thoroughbreds can average between 20 and 35 years. This can vary, but they're certainly able to live past 20 with proper care.
A Cockatoo can live between 40 and 60 years old, and there are reports of them living as long as 75 to 80 year old, but they are not confirmed. While a Macaw will live on average to be 60 to 70 years...