Those white splashes on the sidewalk aren’t fresh paint. They’re vulture poop. Lots of it.

Why Is Vulture Poop White?

Unlike mammals, birds excrete both urine and feces through a single opening called the cloaca. As a result, bird droppings contain a mixture of waste products. The white portion comes primarily from uric acid, which is the bird’s way of eliminating nitrogen waste.

Because vultures are large birds that often gather in groups, the amount of droppings they produce can be significant. When dozens of vultures roost in the same trees, buildings, or utility structures night after night, the result can be sidewalks and surfaces covered with noticeable white stains.

The Neighborhood Cleanup Crew

Vultures may not win any beauty contests, but they perform one of the most important jobs in the natural world. As scavengers, they feed on dead animals, helping remove carcasses that could otherwise spread disease and attract pests.

By consuming decaying remains, vultures play a crucial role in maintaining healthy ecosystems. Their highly acidic digestive systems allow them to safely consume bacteria and pathogens that would be harmful to many other animals.