Foreword by W.J. Bock. With 60 colour plates of birds, 302 colour photographs, 590 distribution maps, more than 7000 bibliographical references. Introduction. Order FALCONIFORMES. Family CATHARTIDAE (NEW WORLD VULTURES). Family PANDIONIDAE (OSPREY). Family ACCIPITRIDAE (HAWKS AND EAGLES). Family SAGITTARIIDAE (SECRETARYBIRD). Family FALCONIDAE (FALCONS AND CARACARAS). Order GALLIFORMES. Family MEGAPODIIDAE (MEGAPODES). Family CRACIDAE (CHACHALACAS, GUANS AND CURASSOWS). Family MELEAGRIDIDAE (TURKEYS). Family TETRAONIDAE (GROUSE). Family ONONTOPHORIDAE (NEW WORLD QUAILS). Family PHASIANIDAE (PHEASANTS AND PARTRIDGES). Family NUMIDIDAE (GUINEAFOWL). REFERENCES: References of Scientific Description. General List of References