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Alexander Wetmore (born June 18, 1886, North Freedom, Wis., U.S.—died Dec. 7, 1978, Maryland) was an American ornithologist noted for his research on birds of the Western Hemisphere. As an employee of the Biological Survey of the U.S. Department of Agriculture, Wetmore was particularly interested in avian anatomy, osteology, fossil birds, migration, and taxonomy. He headed ornithological trips to Spain, many parts of South America, Panama, and almost every state in the United States. He...