Swifts spend almost their entire lives in flight. Free Technical Library News

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Swifts spend most of their lives in flight.

07.11.2018

Scientists were able to establish that white-bellied swifts actually spend their entire lives in the sky.

To obtain such conclusions, experts representing the Swiss Ornithological Institute and the Bern University of Applied Sciences conducted research. They attached one and a half grams of sensors to six individuals of the indicated species of birds. A year later, scientists were able to catch only three of the mentioned swifts. However, the information received from their sensors was enough to draw specific conclusions. So, the results showed that these birds flew from Switzerland to West Africa and returned back the same way.

Experts found that during the migration, swifts were in the air all the time. Drifting allowed them to rest. They realize all their physiological needs in the air. For example, swifts feed on plankton, which is available in the sky. Experts noted that at some points the speed of the movement of birds decreased. Probably, these short periods served as a rest for swifts. However, it is not known whether they sleep during this period or simply reduce the rhythm of movement for relaxation.

According to scientists, during the year the swifts were at rest only during their stay in Switzerland. There they acquired offspring, and all their energy was spent on feeding the chicks. The rest of the year, swifts are in a state of flight.

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