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By: Hankin, E HType: ArticleIn: Proceedings of the Zoological Society of LondonVolume: 1920Series:Issue:Date: 1920Page Range: 467--474Publication Info: London Academic Press, [etc.] 1833-1965Subjects:
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By: Hankin, E HType: ArticleIn: The AukVolume: 32Series:Issue:Date: 1915Page Range: 245--247Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-Subjects: