Everyone knows that birds have feathers, but why so many different colors and shapes? From feathers for flying, to feathers for swimming, feathers for camouflage, to feathers for attracting a mate, this book will give readers a fascinating insight into the lives of birds and their physical adaptations. Topics include how a chick's feathers change from fluffy down to its adult flight feathers, how the bright red and yellow feathers of a macaw can actually help it stay hidden among green rain forest trees, and how feathers help keep penguins warm in the coldest place on Earth.