 This committee was vital in passing the Migratory Bird Conservation Act in 1913 and the Migratory Bird Treaty Act of 1918 with Great Britain.The passage of these measures effectively eliminated the commercial plume trade.Mass Audubon's first wildlife sanctuary, Moose Hill Wildlife Sanctuary in Sharon, Massachusetts, dates back to 1916 when the board accepts an offer of Sharon resident George Field to use his property as a bird sanctuary.