The Western Whipbird (Psophodes nigrogularis) is a passerine bird found in several scattered populations across southern Australia. It is predominantly olive green in colour.
A slim bird some 21 - 25 cm in length, it is olive green with a black throat and a narrow white cheek-patch edged with black on its face. It has a small crest and a long dark olive-green tail tipped with white, its underparts are a paler olive colour. The bill is black with blackish feet. Juveniles are a duller olive-brown in colour and lack the white cheek stripes and dark throat.
Breeding occurs in spring; a bowl of twigs and sticks lined with softer material such as grasses, located in shrubs or trees less than 1-2 m above the ground. A clutch of two eggs, pale blue with blackish splotches and spots, measuring 26 x 19 mm.
Four subspecies are recognised, though one has been considered by some to have specific status as the Mallee Whipbird (P. leucogaster). All are under threat to some degree.
- P. n. lashmari: (Rare) The Kangaroo Island subspecies is endemic to Kangaroo Island, being found in mallee there.
- P. n. leucogaster: (Vulnerable) The Eastern mallee subspecies is found in scattered populations in mallee country on Northwestern Victoria and southern South Australia.
- P. n. nigrogularis: (Endangered) The Western heath subspecies is now restricted to a small patch east of Albany, having disappeared from large parts of its range due to land clearance.
- P. n. oberon: (Rare) The Western mallee subspecies is found in scattered populations between the Stirling Ranges and Ravensthorpe. It is apparently common in the Fitzgerald River National Park.