The most critical scientific characteristic of a bird’s wing that enables it to fly is its shape. The shape of a bird’s wing is optimized to maximize force output during flight while decreasing drag, which can slow the bird down.
The shape of a bird’s wing is similar to that of an airfoil; when air flows over the wings, a force is generated due to the shape of the wings, It results in a differential in air pressure between the top and bottom of the wing.
Find Out Also: What two things allow birds to fly?
The wing’s design guarantees that air flowing over the top of the wing travels faster than air passing beneath it. This pressure differential is what gives the bird its lift. The larger the wing’s surface area, the greater the lift.