Everyone in the community belongs to one of four Galharra – Banaga, Burungu, Balyirri or Garimarra. A lot of business in the community follows people’s Galharra relationship to one another. Our Birdirra Law ceremony, for example, is run by strict rules which guide everyone in the part they have to play during the ceremony. Each person understands their job by knowing their Galharra relationship to the boy going through the Law.
A baby’s Galharra is decided by the Galharra of his or her parents, and according to the Law there are special rules of marriage between Galharra groups.
A Banaga man must marry a Burungu woman and all their children are Balyirri. A Burungu man marries a Banaga woman and their children are Garimarra.

Excerpt from Ngurra Warndurala Buluyugayi, publlished by Juluwarlu Group Aboriginal Corporation.