The Smallest Bird in the World That Beats the Speed ​​of the Space Shuttle | Sword Billed

Hummingbirds are the smallest bird species in the world, only about 6.4 centimeters long. With their small bodies, hummingbirds are reliable fliers with very fast wing movements that even exceed the flight speed of a space shuttle. Hummingbirds can beat their wings between 70-200 beats per second and reach speeds of up to 60 miles per hour. Hummingbirds can reach such speeds because their wing muscles make up 25 percent of their total body weight. This percentage is much higher than other bird species which have wing muscles of 10 percent of their total body weight.