User:CaptainToad/Draft:Bird

Birds (class Aves) are a group of endothermic animals that have feathers. However, unlike mammals, most birds reprouce by laying amniotic eggs. They are found throughout the world, except for the most extreme polar places, and in nearly every surface habitat.

Evolution
Modern birds arose from theropod dinosaurs at some point in the Jurassic, and have much in common with reptiles, but all birds species are warm-blooded.