About the NWRS
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
The mallard, a dabbling duck, uses shallow wetlands and grasslands to feed. The birds strain food particles from the water with their bill, upend to reach deeper foods, or graze on land.
Page Photo Credits All photos courtesy of USFWS unless otherwise noted.
Last Updated: Jan 09, 2013