Hummingbirds are birds. They are very small birds. Most of them are only three to five inches long.These birds are called hummingbirds because of the sound they make. Their wings beat so fast that it makes a humming sound.Many people like these birds. Let us learn more about them.Many hummingbirds have very bright feathers on their head and neck. These feathers shine in the light.Learn what a hummingbird looks like, where it lives, what it eats, who are its enemies, how babies are born, and other fun facts.Reading Level 3.2Ages 7 - 10All measurements in American and metric.LearningIsland.com believes in the value of children practicing reading for 15 minutes every day. Our 15-Minute Books give children lots of fun, exciting choices to read, from classic stories, to mysteries, to books of knowledge. Many books are appropriate for hi-lo readers. Open the world of reading to a child by having them read for 15 minutes a day.