We know nothing about the Yunggurr language apart from its name. It is mentioned in Tryon (1974) as already extinct. It may possibly be a dialect of Matngele.
AUSTLANG
Tryon, D. T. 1974. Chapter 3a: Yunggor. Daly family languages, Australia, 56–61. (Series C 32). Canberra: Pacific Linguistics.