They can dance, sing, and, of course, fly--what's not to love about birds? With more than 10,000 species of dramatically different colors, shapes, and sizes, birds are some of the most fascinating creatures on the planet. The only animal with feathers, birds have soared through the skies for millions of years. In this beautiful picture book, learn what makes a bird a bird, what birds like to eat, and how these masters of the air have evolved. Ever wonder which bird is the smallest? Or the fastest? Which can fly the highest? Or stay airborne longest? You'll find answers to these questions and countless others in The Bird Book.