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How Does That Work?

Waterfowl & Wetlands


Why do ducks need those little wetlands anyway? Find out in this cartoon.

Paddy O'Mallard Cartoon

About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.

Learn more about the NWRS  

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Page Photo Credits — All photos courtesy of USFWS unless otherwise noted., Blue-winged Teal: Copyright Cole Morris
Last Updated: Apr 18, 2014
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