Aerodynamics of intermittent bounds in flying birds

  title={Aerodynamics of intermittent bounds in flying birds},
  author={Bret W. Tobalske and Jason W. D. Hearn and Douglas R. Warrick},
Flap-bounding is a common flight style in small birds in which flapping phases alternate with flexed-wing bounds. Body lift is predicted to be essential to making this flight style an aerodynamically attractive flight strategy. To elucidate the contributions of the body and tail to lift and drag during the flexed-wing bound phase, we used particle image velocimetry (PIV) and measured properties of the wake of zebra finch (Taeniopygia guttata, N = 5), flying at 6–10 m s in a variable speed wind… CONTINUE READING
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