Ex-NASA engineer builds obstacle course to keep squirrels away from bird feeders

Former NASA and Apple engineer Mark Rober built an elaborate obstacle course, attempting to keep squirrels away from feeders meant for birds. It included a ladder bridge, trap door, maze and a catapult, with the feeder at the end. However, the squirrels found a way to dodge obstacles by jumping over them, managing to finish the course within 40 seconds.