Andean condors can fly more than 100 miles without flapping their wings once, researchers reveal – Armenian Reporter

The research, published in Proceedings of the National Academy of Sciences, notes the birds, which can weigh more than 30 pounds, are extremely efficient at using their pre-flight and initial flapping when they first start flying. Once they reach the height they wish to, it’s relatively stress-free.
The Andean condor actually flaps its wings for one per cent of its flight time. (Credit: Facundo Vital)
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