Scientists have long suspected that the common swift remains airborne for extraordinary amounts of time during its annual migration. Now, a team of scientists in Sweden has proved that these birds fly for tremendously long periods of time.
They affixed data loggers onto a total of 19 of the master fliers in 2013 and 2014, and recaptured the birds months or years later. Researchers found that the common swift can spend almost their entire 10-month nonbreeding period on the wing.
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