Bill Nye has a great video on Birds that can be found on the Gamequarium website.
In this video Bill tells us that birds come in all shapes and sizes and because most of them fly they live almost everyone on Earth. Not all birds fly but they do all have feathers. Bill explains how we have a lot in common with birds. We both are warm-blooded, vertebrates, and have 2 legs. But birds have feathers and wings whereas we have arms.
Bill asks a question: "How do birds fly if they don't have a motor?" Watch the video to get the answer to this question and learn lots of fun and interesting information about birds.