They soar and glide, flap, flutter, hover, swoop, plummet. Solo or en masse, in formation, or pas de deux, birds are in their element, their airborne behaviour as varied and distinctive as their plumage. A twenty-year veteran of bird-watching, Carrol Henderson offers his expertise and analysis of birds in flight from around the world. With 150 of Henderson's exquisite close-up photographs of airborne birds, as well as diagrams illustrating the principles of flight and detailed information based on firsthand research, this book is as informative as it is delightful to look at. From the singular beauty of a hummingbird hovering and pollinating a flower, the majestic Condor soaring above the Andes, black storks in Kenya, migrating geese in Minnesota, or Swainson's hawks in Bolivia, this book lets you enjoy the beauty of birds taking wing while learning the fascinating science of how, precisely, birds fly.