Usually about 15-20 years, it all depends on how healthy your bird is, most of the time they don't live to their farthest potential because their either deeply stressed, lonely, or you just didn't act quick enough when they were sick or under weighted. Of course there are more reasons but i can't exactly name them all... But i really hope this helped! (if you want to know more visit ( http:/www.cockatielcottage.net/main.html) it has so much information on cockatails!)
The Merlin birds average lifespan is 7 years
The average lifespan of a Shetland Sheepdog (Sheltie) is about 10-15 years.
ours is 19 and we let her out AVERAGE CAT LIFESPAN IS 15 to 20 YEARS.
The average lifespan for a wall lizard is about 7 years.
The average lifespan of a charolais cow is around 15 years.
What is the average lifespan for cha moms house
The average lifespan of a housefly is about 2.5 weeks.
The average lifespan of a Dingo is 10 years but, in some cases they have 13-18 year lifespan.
The average lifespan of a Dingo is 10 years but, in some cases they have 13-18 year lifespan.
The average lifespan of the people of Asia is 56 years.
The Merlin birds average lifespan is 7 years
what is the average lifespan of a Austrian pine tree
The average lifespan of a Shetland Sheepdog (Sheltie) is about 10-15 years.
The average lifespan of a Yorkshire is 12-15 years if treated properly.
The average lifespan of a fruit fly is twenty to thirty days.
12 years average lifespan.
average lifespan of a mountain is 1 hour