. British birds. Birds. 192 BUrriSH UNEQUAL WING-STROKES IN FLIGHT. With reference to Mr. Seaby's note {antea, p. 156) concerning my photographs {antea, pp. 115-116), in Figure 1 the bird's body may be tilted, it is obvious that the wings are not balancing one another. In Figure 3, whatever illusions perspective may be responsible for, it is nevertheless clear that the right wing is held more back, so that its under-surface is pre- sented to the spectator, whereas the left wing shows him its front edge. Besides this, the left wing is more FIG. GULL. straightened out. In the Ae
. British birds. Birds. 192 BUrriSH UNEQUAL WING-STROKES IN FLIGHT. With reference to Mr. Seaby's note {antea, p. 156) concerning my photographs {antea, pp. 115-116), in Figure 1 the bird's body may be tilted, it is obvious that the wings are not balancing one another. In Figure 3, whatever illusions perspective may be responsible for, it is nevertheless clear that the right wing is held more back, so that its under-surface is pre- sented to the spectator, whereas the left wing shows him its front edge. Besides this, the left wing is more FIG. GULL. straightened out. In the Aeronautical Journal for April last is a photograph of mine showing a Pigeon taking unmistakably unequal strokes. The two photo- graphs accompanying this also supply good evidence. Fig. 1 is a young Gull ; the right wing is bent at a right angle, while the left is held straight, or almost so, at the wrist- joint. Fig. 2 is a figure of a Pigeon alighting, and the conspicuous difference in the positions of the wings cannot be accounted for by any trick of per- spective. I may add that I have other photographs that make the pomt clear. Unfortunately two of the most convincing were not sufficiently in focus for reproduction. F. W. Headley. Blackbirds and Song-Thrushes Nesting on the Ground.—Several correspondents have sent us notes on this subject, but, as has been pointed out, the habit is by no means a rare one. Mr. W. S. M. D'Urban, however, assures us that. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London, Witherby & Co
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherl, booksubjectbirds
