In winter, swallows, storks, and others suddenly disappear. Where have they flown to, and why don't they just stay here? "Discover the Migratory Birds" offers many exciting, child-friendly insights into bird migration. How did it come about? How is it researched? What does it involve, and how do migratory birds navigate? What dangers do they face? Where and when can children observe migratory birds effectively? Answers to all their questions can be found by curious young nature explorers in this entertainingly written book.