Anaheim police and fire officials say 17 people, including six children, were hit by bird droppings just before 9 p.m. Friday.
A hazardous materials team was sent to Main Street near the Sleeping Beauty Castle after a report that feces had been thrown on people.
It was quickly determined the real culprit was a flock of geese flying overhead.
Authorities say the smeared visitors were taken to a private restroom to clean up and were given clean clothes.
Police reported that the guests were "healthy and happy" after the event.
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