A flamingo at an Illinois zoo was euthanized after an elementary school student threw a rock into the wading bird’s exhibit this week — accidentally hitting it, according to local reports.

The incident occurred when the young visitor skipped a rock into the flamingo habitat at Miller Park Zoo in Bloomington on Monday, striking the bird and breaking its leg, zoo director Jay Tetzloff told The Pantagraph.

“Unfortunately, staff determined the best course of action given the animal’s injuries was to euthanize the bird,” Tezloff said.

“This was a truly unfortunate accident, and we are working with the juvenile’s family to move forward,” the director added, noting that there’s no need at this time for the zoo to change the layout of the flamingo exhibit.

While WMBD-TV identified the rock-chucker as an elementary school student, no further details about the young offender were released.

Before the incident, there were 25 flamingos at the exhibit, according to the reports. The exhibit is located toward the front of the zoo, making the pink birds the unofficial zoo greeters.