 Both the German naturalist Maximilian von Wied-Neuwied and Burmeist describe the nomadic Puri of the 19th century.Burmeist states that their huts were very light habitations, built of palm tree leaves and "resembling bird cages", while Wied-Neuw speaks of their simplicity and lack of attachment to structures and land, valuing only few tools.With the deforestation resulting from the extensive coffee plantations of the time, the nomadic peoples of Brazil lost much of their space, and many the remaining Puri were forced to work in the farms, as domestic workers and, especially, as lumberjacks for the clearing of the forest and carrying of wood through the river, forming a cheap workforce for landowners.