caption: U.S. Coast Guard Chief Petty Officer <PERSON>, U.S. Coast Guard Training Center Yorktown food service specialist, assists <PERSON>, 733d Civil Engineer Division wildlife biologist, as he hammers in a post to support a wood duck nesting box at Fort Eustis, Va., Feb. 7, 2015. Wood ducks are cavity nesters and will not nest on the ground and nesting boxes supplement natural cavities and offer a safer place to nest. (U.S. Air Force photo by Master Sgt. April Wickes/Released)
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