The federal government is restoring habitat at a wildlife refuge in Ocean County displaced, ironically enough, by a former state game farm once dedicated to raising wild birds. The U.S. Fish and Wildlife Service plans to spend about $520,000 to knock down 13 buildings at the former New Jersey State Game Farm in Lacey Township. The state sold the property to the federal government for $3.4 million to expand the Edwin B. Forsythe National Wildlife Refuge after the game farm closed in 1985.