Cornell lab of ornithology we use science to understand the world to find new ways to make conservation work and to involve people who share our passion we offer help for birders through all about birds website on all bird info questions etc. Not all flying animals are birds and not all birds can fly the ability to fly has developed independently many times throughout the history of the earth bats flying mammals pterosaurs flying reptiles from the time of the dinosaurs and flying insects are not birds. All birds have feathers and birds are the only animals that do feathers do many jobs for birds soft down keeps them warm wing feathers allow flight and tail feathers are used for steering the color of the feathers can be used to hide the bird or to help the bird find a boyfriend or a girlfriend
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