This book, written by a leading researcher in the field, describes the science of bird migration in an accessible way. Not merely detailing the incredible stamina and navigation skills of birds in their seasonal movements, Berthold also discusses recent ideas, hypotheses, experimental results, and methods in this fascinating field, giving a sense of how we know what we know. No other book covers this ground in such a concise text. There are twelve chapters, including information on types of migration, migratory behaviour, physiological adaptations, orientation mechanisms and navigation, and conservation needs of migrants. For birdwatchers and naturalists, as well as professional ornithologists, this book will inspire a new appreciation and understanding of migrating birds.