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File:PSM V84 D219 Flocking habit of migratory birds fig7.jpg

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Summary

Description Fig. 7. Flock of Blue Geese in echolon formation, photographed by the Rev. H. K. Job. As in Fig. 6. for each goose, the view is unobstructed in front and at right angles of the line of flight.
Date
Source C. C. Trowbridge: On the origin of the flocking habit of migratory birds. The Popular science monthly, Volume 84, p215. New York, Popular Science Pub. Co., March 1914. Online: archive.org.
Author H. K. Job
Other versions
  • 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_D219_Flocking_habit_of_migratory_birds_fig7.jpg

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Date/TimeThumbnailDimensionsUserComment
current15:54, 14 March 2018Thumbnail for version as of 15:54, 14 March 20181,036 × 659 (25 KB)IneuwCleaned image and added frame
17:35, 14 March 2011Thumbnail for version as of 17:35, 14 March 20111,595 × 1,007 (60 KB)Martin H.

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