Our motorized owl heads work consistently better than the wind-powered version. Windy days can be unpredictable. Cool mornings can have stagnant airflow, with breezes picking up when it heats up later in the day. A motorized owl is more reliable, with the tradeoff that you must keep it in a place where it can stay charged. The solar-powered SOL-R owl spins on a timer, rotating randomly every few minutes. For an instantaneous, motion-sensing response, shop TIGER OWL with an actively turning head that pans back and forth as soon as any pest intrudes within the vicinity.