Tree sparrow using bounding and intermittently beating
@According to the observation, the sparrow continues about six times of
beating for 0.3 second, then it folds the wing for 0.3 second. If the flight
velocity is 10 m/s, it will have the beating flight for 3 m and the folding
flight for 3 m. If the flight velocity is smaller than the above, then the wave
length and the amplitude in such a wavy flight becomes smaller and it may draw a
wave with short steps. (Prod. Oct. 2007,
full]scaleCNo.1)
return
next