Nightjars and their allies are a curious, fascinating, and remarkably varied group of birds that are found throughout the world. This largely nocturnal group has many specific adaptations for night time activity and some species have unique associations with bats. Until now, the existing literature has lacked information about their biology or evolution. This book rectifies these omissions in a comprehensive account. The 118 species accounts provide details of coloration, plumage, moults, geographical variation, body measurements, habitats, behavior, conservation, and evolution and are backed...