Some unwelcome visitors at the San Antonio Zoo have been making too much poo.
KSAT-TV reports several species of egrets and herons are nesting in trees above a popular attraction that's now been closed. Hundreds of migratory birds moved into trees above the Tiny Tot Nature Spot and the Riverbank Beach.
Zoo spokeswoman Debbie Vanskike said Tuesday that the bird droppings have coated the area. Vanskike says the Riverbank Beach was drained about a month ago and the area shut down to guests to avoid contact with the bird droppings that could contain diseases.
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The zoo recently obtained special permits from San Antonio and the U.S. Fish and Wildlife to remove and relocate the birds that are federally protected but not endangered. The process continues prior to cleanup.