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Fig. 2. Strain rate (L s1) and relative
electromyographic (EMG) amplitude in the pectoralis muscle of zebra finch
(Taeniopygia guttata). (A) Strain rate in different modes of flight.
(B) Strain rate across a range of velocity in the wind tunnel. (C) Relative
EMG amplitude in different modes of flight. (D) Relative EMG amplitude at
different equivalent airspeeds in the wind tunnel.