Xingu indigenous tribe presenting a ceremony for Blairo Maggi,  the Governor of the State of Mato Grosso, in the town of Barra do Bugres in Mato Grosso.  Note the headdress composed of the feathers of various parrot and macaw species.  Generally, only Xingu men are allowed to wear headdresses.  However, roles are switched during the Ceremony of Yamaricumã (Yamaricuma or Amuricumã), the Dance of the Women which is practiced by the Trumai tribe.  During  Yamaricumã the women wear male headdresses and assume leadership of the entire village.  Curiously, this reversal of male and female roles resembles the legend of the Amazon warrior women.