Grim death toll for tundra swans in N. Idaho

Associated Press – A grim death toll of migrating tundra swans is again being observed at northern Idaho marshes contaminated with toxic mining waste. Thousands of swans headed for breeding grounds in Alaska stop each spring at the marshes along the Coeur d’Alene River. But the roots and tubers they feed on are laced with lead that’s part of about 100 million tons of mining waste from the Silver Valley that has washed into the river system over the past century.

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