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The impact of fox predation on gull breeding success, Sleeping Bear Dunes National Lakeshore. Second Conference Scientific Research in the National Parks. 12. Terrestrial Biology: Zoology:111-129.. 1980.
Intraspecific kleptoparasitism in breeding Ring-billed Gulls. 1978 Colonial Waterbird Group Conference. 1:102-109.. 1978.
The influence of fox predation on Ring-billed and Herring Gull nesting success. First Conference on Scientific Research in the National Parks. 5:519-524.. 1976.
Influence of disturbances in the earth's magnetic field on Ring-billed Gull orientation. The Condor. 74:102-105.. 1972.
Influence of disturbances in the earth's magnetic field on Ring-billed Gull orientation. American Zoologist. 10:23.. 1970.