1969. 596 pp. Hardcover in Good condition, loose front hinge. Dust jacket has chips and tears, price clipped. Non-authorial inscription and name plate on ffep.This book describes a contemporary ecological disaster and the search to explain it. Its extensive analysis offers, on the one hand, an unusual landmark in population biology and, on the other, perhaps the requiem of a species. Papers from a conference convened to document the decline of the Peregrine Falcon and determine its cause.