Weathervanes are another theory. The ones that are made today do not resemble those were utilized on farms. Are usually made of copper accessible in the design of horses, witches, birds and fish among others. Although historically weathervanes were solely instruments for detecting weather changes today's weathervanes are decorative displays. http://altbookmark.com/story8547132/southwest-siestas-8-southwest-mexican-rustic-home-decor-tips-for-your-bedroom