Smithsonian Eagle Weathervane in Blue Verde CopperSmithsonian Eagle Weathervane in Blue Verde Copper A weather vane, or wind vane, shows which direction the wind is blowing. It is usually placed on rooftops, barns, or towers, with its arrow or figure pointing into the wind. Traditionally, the tool helped farmers and sailors understand wind patterns. Now, it is used by all weather observers to track changes in conditions. While weather vanes started as functional tools, they have also become charming