Thomas S. Schulenberg is a research associate at the Cornell Laboratory of Ornithology. Douglas F. Stotz is an ornithologist and conservation ecologist at the Field Museum in Chicago. Daniel F. Lane and John P. O'Neill are illustrators and field ornithologists, and both are research associates at the Louisiana State University Museum of Natural Science. Lane also leads Field Guides birding tours. Theodore A. Parker III, who worked throughout Peru before his death in 1993, was the premier neotropical field ornithologist of his time.

Birds of Peru is the most complete and authoritative field guide to this diverse, neotropical landscape. It features every one of Peru's 1,817 bird species and shows the distinct plumages of each in 307 superb, high-quality color plates. Concise descriptions and color distribution maps are located opposite the plates, making this book much easier to use in the field than standard neotropical field guides. This fully revised paperback edition includes twenty-five additional species.

- A comprehensive guide to all 1,817 species found in Peru--one fifth of the world's birds--with subspecies, sexes, age classes, and morphs fully illustrated

- Designed especially for field use, with vivid descriptive information and helpful identification tips opposite color plates

- Detailed species accounts, including a full-color distribution map

- Includes 25 additional species not covered in the first edition

- Features 3 entirely new plates and more than 25 additional illustrations