We watch them feed them identify them list them count them protect them and more but what is a birdwith roughly 10000 unique bird species in the world it can be difficult to identify exactly what makes a bird a bird but these remarkable creatures share a number of characteristics that help classify them as birds. Threats to birds of prey facts what makes a bird a bird all birds belong to the group of animals called vertebrates meaning animals having a backbone birds make up a special group of vertebrates called aves examples of other groups of vertebrates are fish amphibians mammals and reptiles. Unique bird characteristics what makes a bird a bird birds were able to become flying machines largely through the evolutionary gifts of feathers powerful wings hollow bones warm blood a remarkable respiratory system and a large strong heart. Birds are great fun to watch for people of any age or birding stage next month make your own platform feeder well show you how if it has feathers its a bird cool fact birds are the only living creatures with feathers feathers are made of keratin the same protein that makes up bird beaks lizard scales mammal. 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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