Bird droppings identified as gunk on homes, vehicles
Harrison Township — Tests show that the origin of a mysterious black, oily substance that fell from the sky on houses and vehicles was of this earth. It was bird droppings.
The Macomb Daily in Mount Clemens reports the Michigan Department of Environmental Quality made the identification Tuesday.
Microscopic examinations found traces of leaves, seed and fruit skins.
Paul Schlutow of Harrison Township says his home and pickup truck were covered with the stuff. He says “the odds are astronomical” when wondering how many birds it would take to make a mess that large.
Initially residents suspected the substance had come from planes flying overhead, but officials at nearby Selfridge Air National Guard Base quickly denied any discharges were from planes at the base.