The common swift (lat. Apus apus) is an insectivorous bird feeding solely on aerial insects and spiders it gathers in its mouth as it glides through the air. It is widespread in almost any region from western Europe to eastern Asia and from northern Scandinavia and northern Siberia to North Africa, the Himalayas, and central China. It is a migratory bird, unique in its ability to stay aloft for extended periods of time. Swifts tend to spend the entire day on the wing, only landing to feed their young or roost at night. It is estimated that common swifts are able to fly at least 560 miles per day during the nesting season, illustrating their endurance and strength. They can also mate and forage for food while in the air.