Atrichornithidae or scrubbird, is a family of ground-dwelling passerines in the only genus Atrichornis. There are just two species. The rufous scrubbird is rare and very restricted in its range, and the noisy scrubbird is so rare that until 1961 it was thought to be extinct. Both are native to Australia. The scrubbird family is ancient and is understood to be most closely related to the , and probably also the bowerbirds and treecreepers. All four families originated with the great corvid radiation of the Australia-New Guinea region.