Question

Why do the bird flap their wings downward while taking a flight?

Answer 1

A bird flaps its wings downward during its flight upward because the force is to go up, the counter balance force is downwards, so when it flaps its wings downward, it goes up.

Answer 2

Answer:

Flapping helps a bird to push itself through the air. On the downstroke, the wing forces the air down, pushing the bird up in the process. ... Flapping takes a lot of energy, and it is easier with smaller wings. Small birds, such as sparrows flap their wings in fast bursts.