What is the airspeed velocity of an unladen swallow?
The airspeed velocity of an African or European unladen swallow has been reported to be between 20 and 60 miles per hour (32 to 97 kilometers per hour). However, this value can vary greatly depending on factors such as age, sex, and physical condition of the bird. It's also worth noting that swallows don't fly at these speeds for long periods of time and primarily use flight for navigation and foraging.