Siouan languages
Siouan languages can be grouped into the Western Siouan languages and Catawban languages. The Western Siouan languages can be divided into Missouri River languages (such as Crow and Hidatsa), Mandan, Mississippi River languages (such as Dakotan, Chiwere-Winnebago, and Dhegihan languages), and Ohio Valley Siouan branches. The Catawban languages consist only of Catawban and Woccon.
Siraya language
Several Siraya communities have been involved in a Sirayan cultural and language revitalization movement for more than a decade. Through linguistic research and language teaching, the natives are 'awaking' their mother tongue that has been 'dormant' for a century. Today a group of Siraya children in Xinhua District of Tainan particularly in Kou-pei and Chiou Chen Lin area are able to speak and sing in the Siraya language.