La Crosse, Wis. Wildlife pathologists from the U.S. Geological Survey’s National Wildlife Health Center in Madison, Wis., have diagnosed intestinal parasites, known as trematodes, or flukes, as the cause of a die-off of coots and lesser scaup currently o

Similar die-offs have occurred on Onalaska, near La Crosse, Wis., and Dresbach, Minn., each spring and fall since the fall of 2002. Last fall, almost 3,050 dead birds were found and total mortality was estimated at 6,300-7,000. To date, about 350 dead birds have been found this fall. No human health threats have been documented […]

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