Here's why:
* Tail Wings on Planes: The "tail" of an airplane is the vertical stabilizer, which helps keep the plane stable in flight. It doesn't have wings.
* Qantas Tail Logo: Qantas has a famous kangaroo logo on the tail of their planes. While kangaroos are native to Australia, they wouldn't be living on the tail of a plane!
So, the answer is none – you wouldn't find an animal living on the tail of a Qantas aircraft.