All six species of this family found in Australia are endemic. The White-throated Treecreeper Cormobates leucophaea is common along the east coast. The Brown Treecreeper Climacteris. picumnus, Black-tailed Treecreeper C. melanurus and Rufous Treecreeper C. rufus replace each other around the country, as do the Red-browed Treecreeper C. erythrops and White-browed Treecreeper C. affinis. They all have a long, decurved beak for prying in crevices and under the bark of trees. The only other species in this family occurs in New Guinea.