The common swift (Apus apus) can fly more than 500 miles in one day – significantly more than previously thought, a new study based on tracking data reveals. Now, new evidence reported in the journal iScience on May 20 shows that's a conservative estimateTHE COMMON SWIFT The common swift (Apus apus) is a medium-sized aerial bird. Researchers used miniature tracking technology based on 'geolocation by light' to track adult breeding swifts from a breeding location in Scandinavia. The common swift is plain sooty brown, but in flight against the sky it appears black. 'The airspeed of common swifts is not exceptional (about 10 meters a second) as compared to other bird migrants,' Åkesson said.

Source: Daily Mail May 20, 2021 15:02 UTC