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The conversion of wooded land, marginal for agricultural or industrial use, to highly productive wildlife habitat has 

 been denionstrate<l by biologists at the Patuxent Center. Such areas may be cleared, partly cleared, or left with 

 trees standing. Wat<»r levels in the imiwundment are regulated by a control structure (above) to permit 

 drawdown for maximum food-plant development, removal of rough li.sh, or for other i)uri'o.ses (l)elow. left). 

 Such a development showing imix^unded water, woody cover, and installed, predator-pr(X>fed. wood duck nesting 

 boxes (below, right). (Photos by Frederick C. Schmid, top and lower left: I^ee E. Yeager, bottom right) 



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