This book illuminates' qualities unique to birds that demonstrate just how invaluable they are to humankind—both ecologically and spiritually. The wings of turkey buzzards influenced the Wright brothers’ flight design; the chickadee’s song is considered by scientists to be the most sophisticated language in the animal world and a “window into the evolution of our own language and our society”; and the quietly powerful presence of eagles in the disadvantaged neighborhood of Anacostia, in Washington, D.C., proved to be an effective method for rehabilitating the troubled young people placed in charge of their care.