According to the Macomb Daily, officials have identified the 'mystery substance' that was recently falling from the sky in Harrison Township. Tests show that the origin of the mysterious black and oily substance that was falling from the sky on houses and vehicles was---bird droppings. Eww.

Residents in the area had apparently thought that since their community was located in a flight path to Selfridge Air National Guard Base that the mystery substance was coming from an aircraft. But the tests results from the Michigan Department of Environmental Quality say's just bird poop--and A LOT of it.

You can read all about it and see 'photographic evidence' by clicking here.

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