Hummingbird

There are more than 300 kinds of hummingbirds, some of which exhibit the most beautiful colors in nature. Hummingbirds include the smallest birds in the world, but they belong to one of the largest families of birds. Some of these enchanting birds are found in deserts, mountains, and plains, but most are found in the tropical rain forests. Their name refers to the humming sound made by their tiny beating wings. Even though hummingbirds are small in size, they have huge appetites. Hummingbirds consume between 3.14 and 7.6 calories a day, sucking out nectar from flowering plants.