In six numbers of The Condor: Journal of the Cooper Ornithological Society. Part I: Winter and Pre-nesting Behavior. Vol 59, No 5 (1957); Part II: The Beginning of Nesting. Vol 61, No 3 (1959); Part III: The Nesting Cycle. Vol 62, No 5 (1960); Part IV: Development of Nestlings. Vol 63, No 1 (1961); Part V: Fledging to Independence. Vol 64, No 3 (1962); and Part VI: Competition and Survival. Vol 65, No 1 (1963). The authors' complete study of the species in the Tucson area over a period of about 20 years. The complete numbers with additional articles of interest and color frontispieces of the Three-wattled Bellbird and Laysan Duck from paintings by Don R. Eckelberry. Also included is the authors’ paper in the Condor (67/4) on ‘The Cactus Wren on the Santa Rita Experimental Range, Arizona’ and the Birds of North America species account for the Cactus Wren (BNA558).