WARHAM, John. British, b. 1919. Genres: Photography, Zoology. Career: Reader in Zoology, University of Canterbury, 1966-85; (retired). Publications: The Technique of Bird Photography, 1956, 4th ed. 1983; The Technique of Wildlife Cinematography, 1966; (with D. L. and V. N. Serventy) The Handbook of Australian Seabirds, 1971; The Petrels: Their Ecology and Breeding Systems, 1990; The Behaviour, Population Biology and Physiology of the Petrels, 1996. Address: Zoology Dept, University of Canterbury, Christchurch, New Zealand.