Owls use their entire face to receive sounds. The heart-shaped disc of tightly packed feathers on a barn owl's face, for example, is designed to collect sounds and then focus them on the owl's ears, which are buried below the feathers on either side of its head. Owls hunt mainly at night and though they have good night vision, they rely on their ability to detect minute sounds to catch their prey (mice, voles, and shrews). The owl can compare the sounds
MIDNIGHT FEAST- A barn owl returns to its nest having located and caught a field mouse in pitch darkness.The owl detected the rustlings of the mouse as it ran through the grass.
reaching each ear and work out the location of their source. In addition, one ear is slightly higher than the other so the bird can gather both horizontal and vertical information. With this arrangement, it can pinpoint the position of prey accurately in complete darkness. It then swoops down with silent flight,using its sensitivity to the slightest rustle made
by its prey to align its talons to every
zigzag movement the prey might make. At just the right moment, it grabs its victim and the hunt is over.
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