Animal locomotion or walking, swimming, and flying : with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King & Co. · leaf 226
entire body (the neckand tail participating) in an upward direction (fig. 59,p. 126 ;fig. 102, p. 183); or it rises principally by the action of thewings and by muscular efforts, as happens in the lark. Thebird can in this manner likewise retain its position in theair, as may be observed in the… … Fig. 106.—The Pigeon (Treron lieincta, Jerdon\ firing downwards and turningprior to alighting. The pigeon expands its tail both in ascending auddescending.— Original. (fig. 106); or it may flex the wings, and so accelerate itspace; or it may raise its wings and drop parachute-fashion(fig. 55, p.…
Animal locomotion · Physiology · Aeronautics
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