[quote]Although a definitive answer would of course require further measurements, published species-wide averages of wing length and body mass, initial Strouhal estimates based on those averages and cross-species comparisons, the Lund wind tunnel study of birds flying at a range of speeds, and revised Strouhal numbers based on that study all lead me to estimate that the average cruising airspeed velocity of an unAlthough a definitive answer would of course require further measurements, published species-wide averages of wing length and body mass, initial Strouhal estimates based on those averages and cross-species comparisons, the Lund wind tunnel study of birds flying at a range of speeds, and revised Strouhal numbers based on that study all lead me to estimate that the average cruising airspeed velocity of an unladen European Swallow is roughly [b]11 meters per second,[/b] or[b] 24 miles an hour.[/b] [/quote] [spoiler]http://style.org/unladenswallow/[/spoiler] [spoiler]This is not my work credit goes to the author of the article[/spoiler]

*claps*

The power of google!