This is what people are doing to save lead-sickened swans

For decades, environmental laws have protected North America’s trumpeter swan from sport hunting, but every year swans in the Pacific Northwest fall victim to one of hunting’s toxic legacies.For now, a small group of scientists and volunteers may be their only chance of survival.Reporting for our EarthFix team, Ken Christensen has the final story in our series on the effects of lead ammunition on wildlife. .