L1 users: 14 (Moore 2006). 14 monolinguals. All speakers are monolingual. Ethnic population: 46 (2009 ISA).
Goiás state: Terra Indigena Ava-Canoeiro; Tocantins state: Bananal island, upper Tocantins river valley.
8b (Nearly extinct).
The groups in Tocantins and Goias speak different dialects, and have lived apart for over 100 years.
Seminomadic. The group in Tocantins, contacted in 1974, has 12 people. An estimated 15 remain uncontacted. The other group in Goias, contacted in 1983 has 9 people, with an estimated 10 remaining uncontacted. Traditional religion.