A monumental undertaking, this comprehensive guide covers 2,308 species of birds found from Ecuador to French Guiana. This companion volume contains extensive species accounts, with information on habitat, vocalization, nomenclature, and the latest taxonomy. Color plates and distribution maps are published separately in Volume 2 (SAM104), intended as a field guide. Robin Restall is executive director, Clemencia Rodner is research associate, and Miguel Lentino is scientific director at the Phelps Institute for Ornithological Studies, Caracas, Venezuela.  (SAM102, $95.00)