Eastern Thick-billed Grasswren (Amytornis modestus ssp. inexpectatus)
The Eastern Thick-billed Grasswren was described in 1912, it inhabited dense vegetation in the Murray-Darling basin in the northwestern part of New South Wales.
The bird reached a length of about 16 cm.
The Eastern Thick-billed Grasswren was never found again since its description and is considered extinct.
*********************

Depiction from: ‘Gregory M. Mathews: The Birds of Australia. London: Witherby & Co. 1910-1927’
(public domain)
*********************
edited: 22.03.2018