
According to new tracking data, common swifts travel 570 kilometers (more than 350 miles) on an average day–but they are capable of going much farther and faster.
According to new tracking data, common swifts travel 570 kilometers (more than 350 miles) on an average day–but they are capable of going much farther and faster.
Swifts have declined by 53% between 1995 and 2016. The RSPB thinks loss of nest sites could be contributing.
The shape of a Swift’s wing helps it to glide through storms.