Why do roadrunners disappear from the desert each winter? This ecologist has a guess.
“How fast can a roadrunner run?” is a question I am often asked. The top speed given in the literature is 18 miles per hour. I put the top speed closer to 20 based on a roadrunner running alongside my vehicle for a short distance. In either case, a roadrunner’s speed is less than half that of a race horse. Winning Brew reached nearly 44 mph at the 2008 Penn National Race Course in Grantville, Penn. A roadrunner’s top speed is also less than a human sprinter. Usain Bolt, the Olympic gold medalist from Jamaica, was once clocked at 27 miles per hour.
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