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1 January 1975 MORTALITY FACTORS IN WHISTLING SWANS AT LAKE ST. CLAIR, ONTARIO
J. C. IRWIN
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Abstract

Post mortem examinations of 31 whistling swans (Olor columbianus) collected from the Lake St. Clair marshes in the spring of 1972 indicated that lead toxicosis and filariasis (Sarconema eurycerca) were the main causes of mortality.

IRWIN: MORTALITY FACTORS IN WHISTLING SWANS AT LAKE ST. CLAIR, ONTARIO 1
J. C. IRWIN "MORTALITY FACTORS IN WHISTLING SWANS AT LAKE ST. CLAIR, ONTARIO ," Journal of Wildlife Diseases 11(1), 8-12, (1 January 1975). https://doi.org/10.7589/0090-3558-11.1.8
Received: 1 August 1973; Published: 1 January 1975
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