Five lines about birds ear and eye
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Answer:
Eyesight is a bird's most critical sense and the one it relies on the most for flight, evading predators and finding food. Birds have a thicker retina than humans, and their eyes are larger in proportion to their head size. They have much denser rods and cones—the "seeing" cells—packed on the retina, giving them superior vision in both black-and-white and color. The range of colors birds see is not much greater than humans, but some species, such as hummingbirds, can see ultraviolet colors.
Hearing
Hearing is birds' second most important sense, and their ears are funnel-shaped to focus sound. The ears are located slightly behind and below the eyes, and they are covered with soft feathers—the auriculars—for protection. The shape of a bird's head can also affect its hearing, such as owls, whose facial discs help direct sound toward their ears. The confusingly named ear tufts of many owls and other birds, however, have nothing to do with hearing.
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