The friendly and talented Hedwig from Harry Potter and the Sorcerer's Stone was played by 7 different white owls, according to Humane Hollywood. Gizmo had the biggest screen time, but some of Hedwig's scenes were also done by Kasper, Oops, Swoops, Oh Oh, Elmo, and Bandit. Each working owl had its own perch, a large space to safely fly around in, fully equipped bathing facilities, and an invisible safety line to help them make their way across the scene to a trainer waiting with a treat.