books.google.com - Containing more than one-third of the world's bird species, the neotropical region surpasses all other zoogeographic regions in the diversity of its avian fauna. Though the exploration and cataloging stages of ornithology are now virtually complete, new species and undescribed subspecies of birds are...http://books.google.com/books/about/Manual_of_Neotropical_Birds.html?id=YP0AX3LW8jYC&utm_source=gb-gplus-shareManual of Neotropical Birds
