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Figure 5


Fig. 5. Intermittent flight postures exhibited by budgerigar Melopsittacus undulatus as a function of flight speed in a wind tunnel. Black, glide; grey, partial bound; white, bound (from Tobalske and Dial, 1994). As flight speed increases, the proportion of non-flapping phases consisting of glides decreases, and the proportion consisting of bounds increases.





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