Both the dodo and the moa have already disappeared from our world. Could the sparrow, the swallow or the robin be next?In recent years, ornithologists have been sounding the alarm: bird populations are declining all over the world and some species are on the verge of extinction. The Call of the Birds explores the history of our relationship with birds and helps readers to understand the vital role they play in our world. Beautifully written and illustrated, this book empowers future generations to protect bird populations by offering helpful advice and easy, actionable steps.