Greater ground robinThe greater ground robin is a species of bird in the family Petroicidae. It is found in New Guinea.Taxonomy and systematicsThere are two recognised subspecies of the greater ground robin:A. s. sclateriana - The nominate subspecies, found in the mountains of the Huon Peninsula.A. s. occidentalis - Found in the Oranje Mountains in central New Guinea. It has browner and more mottled underparts than the nominate subspecies does.DescriptionIt is the largest robin in New Guinea, at in length.Distribution and habitatIt is endemic to New Guinea. It is found at elevations of.Behaviour and ecologyDietIt feeds on invertebrates, such as beetles.Cited text*