File:PSM V84 D214 Flocking habit of migratory birds fig1.jpg

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Description Fig. 1. In the left-hand diagram, A, the arrows are intended to represent birds and the directions in which each individual would fly if alone. Thus they indicate the amount of confusion of each bird with respect to the true destination D. In the right hand diagram B, the birds are represented flying in a flock, the errors of orientation having been averaged by mutual reaction as indicated by the parallel arrows.
Date
Source C. C. Trowbridge: On the origin of the flocking habit of migratory birds. The Popular science monthly, Volume 84, p210. New York, Popular Science Pub. Co., March 1914. Online: archive.org.
Author C. C. Trowbridge
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  • C. C. Trowbridge: On the origin of the flocking habit of migratory birds
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:PSM_V84_D214_Flocking_habit_of_migratory_birds_fig1.jpg

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Date/TimeThumbnailDimensionsUserComment
current15:16, 14 March 2018Thumbnail for version as of 15:16, 14 March 20181,584 × 1,163 (77 KB)Ineuw (talk | contribs)Cleaned image and added frame
11:51, 14 January 2014Thumbnail for version as of 11:51, 14 January 20141,638 × 1,203 (102 KB)Ineuw (talk | contribs)cleaned image
17:34, 14 March 2011Thumbnail for version as of 17:34, 14 March 20111,720 × 1,188 (123 KB)Martin H. (talk | contribs)

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