File:PSM V84 D216 Flocking habit of migratory birds fig3.jpg
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Summary
| Description | Fig. 3. Platton flickr formation, which is seldom ovserved; only the end burds can see towards the side. The field of view becomes more obscured as the number of burds increase. Non-protective. | |||
| Date | ||||
| Source | C. C. Trowbridge: On the origin of the flocking habit of migratory birds. The Popular science monthly, Volume 84, p212. New York, Popular Science Pub. Co., March 1914. Online: archive.org. | |||
| Author | C. C. Trowbridge | |||
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Licensing
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:29, 14 January 2014 | | 1,608 × 175 (26 KB) | Ineuw | Cleaned image |
| 17:34, 14 March 2011 |  | 1,720 × 207 (32 KB) | Martin H. |
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