Flying Hummingbird Postcard

Animal card showing a beautiful colourful hummingbird in flight. Hummingbirds are New World birds that constitute the family Trochilidae. They are among the smallest of birds. They are known as hummingbirds because of the humming sound created by their beating wings which flap at high frequencies audible to humans. They hover in mid-air at rapid wing flapping rates, typically around 50 times per second, but possibly as high as 200 times per second. Hummingbirds have the highest metabolism of any homeothermic animal. To conserve energy when food is scarce, they have the ability to go into a hibernation-like state.