Ways and classification of bird's flight
T@Non-flapping flight | Typical flight each of four 
forces acting on bird 
@@plays the leading role in.
@@ϊ@@Flight 
using lift on wing (gliding)
@@ϊA@Flight using drag on wing 
(parachuting)
@@ϊB@Accelerating flight due to gravity (diving)
@@ϊC@Flight 
using bird's inertia (bounding)@
U@Flapping flight|1 [ The flight with equivalent average 
lift to the weight.
@@ϊ@@Ordinary flight (cruising)
@@ϊA@High-speed 
flight (emergency)
@@ϊB@Low-speed flight
@@ϊC@Stop in air 
(hovering)
V@Flapping flight|2 [The flight with non-equivalent average 
lift to the weight.
@@ϊ@@Ordinary takeoff
@@ϊA@Emergency 
takeoff
@@ϊB@soft landing (except non-flapping landing)
@@ϊC@Flight with a 
load
@Each of the flapping flight is different according to the bird's size (the arm length).
return
                      next