The native dwellings, some of which are still used, were generally constructed of adobe and reeds, with flat roof of grass and clay. Many of the Yaqui now labour in the Sonora mines; others manufacture palm leaf hats and mats and reed baskets. There are no secret societies and little organization in the tribe. Formerly they were accustomed to exchange wives, but now most of the Yaqui have been converted to Catholicism.