All Three Populations of North American Trumpeter Swans Are Increasing
10,000 Birds
JANUARY 28, 2015
During the 1980s, the Pacific Coast Population swans became the source of eggs for several restoration programs in Minnesota, Michigan, Ohio, Wisconsin, and Iowa 2. The Trumpeter Swan Society lists these as: Lead Poisoning – occurs when swans ingest lead shot or lead fishing sinkers in wetlands and lakes.
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