Wiradjuri is a member of the Wiradjuri group of the Pama-Nyungan languages. It is spoken by a small number of people in the central southern region of New South Wales of Australia.
The last known native speaker of Wiradjuri died during the 1980s, however since then efforts have been made to revive the language, particularly by Wiradjuri Elder Stan Grant. A standardised spelling system for the language was approved by the Wiradjuri Council of Elders in 1988, and there are now a number of textbooks, grammars, a dictionary and other materials in the language.
source
wikipedia.org,
omniglot.com &
ethnologue.com