Hudson, Wis. (AP) — A growing number of waterfowl are being
treated for lead poisoning, and wildlife officials in Wisconsin and
Minnesota are debating the source.
Officials with Minnesota’s DNR point to a moratorium on swan
feeding that went into effect last fall in both states.
Those officials say waterfowl don’t have people feeding them, so
they’re eating in areas they haven’t visited in years. Those areas
could still be contaminated with lead shotgun pellets that were
banned in waterfowl hunting in the late 1980s.
Wisconsin’s DNR says it doesn’t have enough data to support that
conclusion. Avian ecologist Patricia Manthey says so many factors
lead to lead poisoning that officials may never be able to pinpoint