The bald eagle is the national symbol of the United States, but the bird almost disappeared from North American skies. Bald Eagle explores how the species was once threatened by hunting and pollution, explaining how public awareness and scientific efforts have helped keep these iconic birds soaring. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.