Smithsonian Rooster Weathervane in Pure CopperSmithsonian Rooster Weathervane in Pure Copper A weather vane, or wind vane, indicates the direction of the wind and is typically mounted on rooftops, barns, or towers. Initially used by farmers and sailors to understand wind patterns, it now serves as a tool for all weather observers. While weather vanes started as practical tools, they have become attractive decorations, with the rooster design being one of the oldest. Good Directions has been