Slender-billed thornbill

The thornbill ranges from 9 to 10 centimeters in length. The colour of its back ranges from olive-grey to a darker olive-brown. The base of its tail is olive-yellow. Its underbelly is a smooth cream colour, and it has a dark bill and pale eyes. ==Distribution and habitat==

The slender-billed thornbill iredalei subspecies has six separate and isolated populations in Western Australia, and a large population in the Carnarvon bioregion. The hedleyi subspecies is found in southeastern South Australia and western Victoria, and the rosinae subspecies is most commonly found in the Gulf St Vincent region of South Australia. ==Conservation status==

The rosinae subspecies is considered vulnerable. The hedleyi subspecies is considered near threatened. The slender-billed thornbill (iredalei subspecies) is extinct in northern Australia, and is considered the only indigenous species to have become extinct in that region since European settlement. Under this Act, an Action Statement for the recovery and future management of this species has not been prepared. • On the 2007 advisory list of threatened vertebrate fauna in Victoria, this species is listed as near threatened. ==References==