Yagua town. Blowguns, blowgun calls are greatly elongated, hand-crafted and used for hunting. Peruvian troops are stationed in Pebas, occurring between yaguas a measles epidemic that wiped out a third of the local population. Between 1930 and 1940, the palm fronds were forced by employers to migrate to areas south of the Amazon, extending its territory to the Rio Yavari and conflicting with Mayorunas. In 1945 the Franciscans arrived shortly after Canadian and SIL missionaries who translated the Bible into the language yagua.