Fig. 11. Mean pitch. (A) Correlation between downstroke deviation and mean pitch from each wingbeat cycle. Regression lines for five individuals super-imposed. A relatively strong correlation exists within each individual (R²=0.65 turquoise, 0.87 green, 0.97 orange, 0.83 pink, 0.76 purple), but the correlation differs across individuals (total R²=0.49). (B) Upstroke lift from Fig. 10I, with regression lines for the same five individuals from A super-imposed.