Complex sentence: Then it was decided to install devices that annoyed the geese: stuffed foxes, lasers, balloons, loud noises, plywood coyote silhouettes, and fake goose corpses were used.
Split into simpler sentences: Then it was decided to install devices that annoyed the geese. Stuffed foxes, lasers, balloons, loud noises, plywood coyote silhouettes, and fake goose corpses were used.