This whirly gig was built during the summer of 2000. As the wind turns the prop, the goose flops it's wings. With every third rotation, air is forced through by a piston through a built in goose call for an audible 'honk'. At the exact moment of the honk, the goose's beak opens as if to sound the call. Click on the picture of the goose to load an animated view of the goose in motion.>