Gliding perching sequence taken with high-speed digital video camera: (a) The eagle glides with wing straightens; tail spreads and flicked up and back. [(b), (c)] Wing twists, tail spreads and pushes downwards to endure rapid pitch-up. (d) Wing outstretched to give parachute-like shape and wrist swept upward to undergo deep stall. (e) Tail began to shrink and pushes upwards to prevent strikes. (f) Perched with zero running distance, and wrist sweeps forward.