A bird which can fly backwards is

Name the bird which can fly backwards?

Name the bird which can fly backwards?

Name the bird which can fly backwards?

Name the bird which can fly backwards?

Which of the following can fly backwards

Which of the following can fly backwards

Which of the following can fly backwards

X: Birds can fly because their bones are hollow and light. Y: The bones of the hind limbs are meant for walking and perching.