Moments of Discovery is a compilation of 20 autobiographic chapters by biologists who traveled in Middle America, mainly for ornithological field work, from the 1930s to the 1990s. The authors include big names in ornithology of this region: Miguel Álvarez del Toro (the only Mexican author), Robert F. Andrle, John M. Bates, Lula C. Coffey, Walter W. Dalquest, Robert W. Dickerman, Stephen W. Eaton, Ernest P. Edwards, John T. Emlen, Jr., Paul D. Haemig, Joyce Heck, Joe T. Marshall, Jr., Paul S. Martin, Don Owen-Lewis, A. Townsend Peterson, John H. Rappole, Charles G. Sibley, Walter A. Thurber, Dwain W. Warner, and Kevin Winker. This collection is intended to preserve a record of events that have gone mostly unrecorded in print. The majority of the travels described took place in Tamaulipas and Veracruz, with most others in central Mexico, Chiapas, and Central America; relatively few pages deal with field work in Baja California and Sonora. The black-and-white photographs included in some chapters are interesting. The map of Middle American states and countries inserted between the preface and chapter 1 should have been larger and should have indicated the location of places mentioned in each of the chapters; as it stands I do not think it is at all useful.