This family, which includes Chachalacas, Guans, Curassows, etc. consists of 50 very particular species of birds, typical of Middle and South America, mostly rare and threatened. The original monography from 1973 by J. Delacour and D. Amadon included wonderful illustrations by A.E. Gilbert. This essential new edition contains all the original drawings and plates as well as stunning new plates by A.E. Gilbert illustrating the chicks of some of the species, and incorporates the plates from the Handbook of the Birds of the World corresponding to this family. Also includes an update chapter dealing with the most significant facts discovered about each species since the release of the first edition 30 years ago, with a special emphasis on natural history and conservation status. A must-read for anyone with an interest in this fascinating family.