Why Birds Fly into Power Lines and Similar

Birds are different from human beings obviously. Birds have been known to fly into objects and knock themselves out. Why does this happen? A sensory ecology framework is used in a new research study to seek to assess why flying birds collide with prominent structures, such as power lines, fences, communication masts, wind turbines and buildings, which intrude into the open airspace. Such collisions occur under conditions of both high and low visibility. It is argued that a human perspective of the problems posed by these obstacles is unhelpful. Birds live in a different visual world. When in flight, birds may turn their heads in both pitch and yaw to look down, either with the binocular field or with the lateral part of an eye’s visual field. Such behavior may be usual for them and results in certain species being at least temporarily blind in the direction of travel.

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