<P> The Federal Duck Stamp , formally known as the Migratory Bird Hunting and Conservation Stamp , is an adhesive stamp issued by the United States federal government that must be purchased prior to hunting for migratory waterfowl such as ducks and geese . It is also used to gain entrance to National Wildlife Refuges that normally charge for admission . It is widely seen as a collectable and a means to raise funds for wetland conservation , with 98 % of the proceeds of each sale going to the Migratory Bird Conservation Fund . </P>
when do you need a federal duck stamp
must be purchased prior to hunting for migratory waterfowl such as ducks and geese