English: 1934-35 United States Department of Agriculture migratory bird hunting stamp depicting mallards by Jay N. "Ding" Darling, chief of the U.S. Biological Survey.
{{Information |Description ={{en|1=1934-35 United States Department of Agriculture migratory bird hunting stamp depicting mallards by Jay N. "Ding" Darling, chief of the U.S. Biological Survey.}} |Source =http://www.fws.gov/birds/get-involve...
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