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Chicago Audubon Society

Nearly two dozen dead geese, such as this one, have been found at McKinley Park and nearby McGuane Park on the Southwest Side between Aug. 15 and Aug. 17, 2011. (Credit: CBS)

Officials: Waterfowl In Chicago Parks Died Of Avian Botulism

The waterfowl that have recently died en masse at the Park District’s McKinley Park, and elsewhere in the Chicago area, were suffering from avian botulism.

CBS Chicago–08/30/2011