A bird motion simulator decoy system uses a pulley system supported by a plurality of stanchions and driven by a motor to create a continuous, circuitous loop of moving decoys attached to a pulley belt. The stanchions each have a pulley support arm connected extending from a central shaft, to which at least one pulley is connected. The pulley belt is engaged with each of the pulleys. The stanchions are either affixed into the ground by a ground anchor or to a tree by ratchet straps. A plurality of decoy attachments is affixed to the pulley belt, and as the motor drives the pulley, the decoy attachments move in a continual loop, simulating bird motion.