On 13 August 2018, the Grand Parc launched a program where specially trained rooks fly around the park to pick up cigarette butts and other small pieces of litter. Christophe Gaborit, the park's Head of Falconry, originally trained the birds to participate in the park's falconry show, but later was inspired to teach them how to pick up rubbish left by the park's visitors. By using a specially-created box, which was inspired by a magician's prop, he taught six of his birds—Boubou, Bamboo, Bill, Black, Bricole, and Baco—to deliver bits of trash to the box and exchange them for food. The goal of the project is to both teach the park's visitors about the birds and to discourage littering.