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. What makes a bird a bird may garelick on amazoncom free shipping on qualifying offers describes the characteristics birds share with other animals flight wings song nest building and egg laying and the one that is unique to birds alone feathers. This book is all about deciding what makes a bird a bird it goes through different characteristics of a bird and it finally lands on the only thing that truly makes a bird a bird its feathers i like this book because the illustrations are very life like and colorful the information included in this book is very useful as well. Birds also lay eggs which has as thick shell and a amniotic sac but what makes bird a bird is some unique features it possesses feathers powerful wings lightweight body hollow bones warm blood amazing respiratory system and a comparitively large heart helps the birds fly feathers. This video quickly lays out the characteristics that make a bird a bird
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