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Old 11-09-2010, 03:30 PM   #1
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Default Power lines 'invisible' to birds
Power lines 'invisible' to birds
By Ella Davies
Earth News reporter
Page last updated at 09:37 GMT, Tuesday, 2 November 2010

BBC - Earth News - Power lines 'invisible' to birds
excerpt from above:
Quote:
Birds fly into power lines because they have "blind spots" in their field of vision, according to new research.

Vision experts found that cranes, bustards and storks were unable to see obstacles straight ahead when they tilted their heads downwards in flight.

Birds often look down during flight to find fellow birds as well as...
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avian, bird, birds, blind spots, bustards, cranes, flight, fly, flying, invisible, lines, power, power lines, research, storks, study, vision

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