The whooping crane is one of North America's rarest (and tallest) birds. Human activity once left less than 20 whoopers alive. Scientists and nature groups now work to save the species. Whooping Cranes draws on up-to-date science. Stories and next level facts explain the bird's life and diet. The book also details the ways people help—and harm—the species. This book in the Animals in Danger series takes readers inside the whooping crane's world. Clear text and beautiful images provide what you need to know. Added features like maps and a glossary round out your knowledge.