"Probable drowning of tundra swans on the northern coast of California" in Journal of Wildlife Diseases

"Morphometric Variation in Tundra Swans: Relationships among Sex and Age Classes" in The Condor

"Behavioral ecology of coots and waterfowl at an avian cholera epornitic site, Humboldt County, California" in Theses and Dissertations

"Correlations of daily activity with avian cholera mortality among wildfowl" in Journal of Wildlife Diseases