Some research papers are says that the barn Owls mainly hunt by sound rather than by sight. With its acute hearing the Barn Owl can detect the slightest movement & sound of its prey. The ears are set asymmetrically, meaning one ear is higher than the other. The ears are located under the feathering of the inside edge of the facial disc, located next to the eyes. The facial disc acts as an amazing sound funnel, collecting & filtering sound. This allows the Owl to detect the movement of its prey with complete accuracy.