The U.S. Fish and Wildlife Service recently approved four new nontoxic shot types for waterfowl and coot hunting in the United States.
The approved shot types are:
A formulation of tungsten-iron-copper-nickel shot, composed of 40-76 percent tungsten, 10-37 percent iron, 9-16 percent copper and 5-7 percent nickel produced by Spherical Precision Inc. of Tustin, Calif.
A formulation of iron-tungsten-nickel alloys composed of 20-70 percent tungsten, 10-40 percent nickel and 10-70 percent iron produced by ENVIRON-Metal Inc. of Sweet Home, Ore.
A formulation of tungsten-bronze shot made of 60 percent tungsten, 35.1 percent copper, 3.9 percent tin and 1 percent iron produced by Olin Corporation of East Alton, Ill.
A formulation of tungsten-tin-iron shot composed of 58 percent tungsten, 38 percent tin and 4 percent iron produced by Nice Shot Inc., of Albion, Pa.
Waterfowl can ingest expended lead shot and die from lead poisoning. Efforts to phase out lead shot began in the 1970s, and a nationwide ban on lead shot for all waterfowl hunting was implemented in 1991. Canada followed with a complete ban in 1999.
A study in the mid-1990s suggested that the nationwide ban in the United States on the use of lead shot for waterfowl hunting has had remarkable success. Six years after the ban, researchers estimated a 64 percent reduction in lead poisoning deaths of surveyed mallard ducks and a 78 percent decline in lead pellet ingestion. The study concluded the restrictions on lead shot has prevented the deaths of thousands of waterfowl.
For more information on toxic and nontoxic shot, visit the Web site at http://migratorybirds.fws.gov/issues/nontoxic_shot/nontoxic.htm.
