Study: Swift birds fly non-stop for 10 months every year

A common swift.

A new study has revealed that a small bird known as the common swift can fly for 10 months without landing.

The study in the US journal Current Biology has confirmed an old hypothesis that these birds spend most of their lives in the air.

Scientists believe the birds which stop while flying does so only for a moment, and spent 99.5 percent of the 10 months in the air. They save energy during the day by sliding in upward currents of warm air.

It’s still unclear how the birds sleep during the time. But researchers believe they might catch a few winks when they fly to high heights.


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