The fastest bird on record for level flight is the common swift (Apus apus), which reaches around 112 km/h. Using an airplane tracking device on seven bats, scientists found that they all achieved speeds of almost 100km/h, with one bat logging a top speed of 160 km/h.

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The fastest bird on record for level flight is the common swift (Apus apus), which reaches around 112 km/h. Using an airplane tracking device on seven bats, scientists found that they all achieved speeds of almost 100km/h, with one bat logging a top speed of 160 km/h.