Brewing yerba mate with a kettle ("pava" in spanish). The word "Pava" (Turkey) comes from the similarity the Gaucho saw in this vessel with the silhouette of the bird while brooding her eggs in the nest.
Mate. 'Mate, also known as chimarrão or cimarrón, is a traditional South American infused drink, particularly in Argentina, Uruguay, Paraguay, southern states of Brazil, south of Chile, and the Bolivian Chaco. It is prepared from steeping dried leaves of yerba mate in hot water.' http://www.lonelyplanet.com/argentina