Kaingang is spoken people in the Brazilian states of São Paulo, Paraná, Santa Catarina and Rio Grande do Sul. It is a member of the Macro-Gê or Gê family of languages. There are about 29,000 Kaingang people and about 18,000 of them speak Kaingang language. Alternative names for this language include Kaingáng /Caingangue
A school to teach the Kaingang people to read and write their own language was set up in 1969. Since then it has trained a number of Kaingang as teachers, who have gone back to their reservations and taught others to read and write. This has helped give the Kaingang a pride in their language and themselves.
There are at least four different dialects of Kaingang, one of which is used as the standard written form. A Kaingang translation of the bible was published in 1977, and there is also a dictionary and a number of other publications in Kaingang.
source
wikipedia.org, omniglot.com & ethnologue.comHealth
Definitely endangeredyounger brothers