The eastern whipbird (Psophodes olivaceus) is an insectivorous passerine bird native to the east coast of Australia. Its whip-crack song is a familiar sound in forests of eastern Australia. Two subspecies are recognised. Heard much more often than seen, it is dark olive-green and black in colour with a distinctive white cheek patch and a crest. The male and female are similar in plumage. Taxonomy The eastern whipbird was mistakenly described by John Latham as two separate species in 1801 from early colonial illustrations, first as the white-cheeked crow (Corvus olivaceus) and as the coachwhip flycatcher (Muscicapa crepitans). The bird became commonly known as coachwhip bird or stockwhip bird. John Gould recorded the aboriginal term Djou from the Hunter Region of New South Wales. Its specific name is derived from its olive colouration, though it was soon placed in the new genus Psophodes by Nicholas Aylward Vigors and Thomas Horsfield, derived from the Greek psophōdes/ψοφωδης meaning 'noisy'. The family placement has changed, some now placing it in a large broadly defined inclusive Corvidae, while others split it and several other genera into the quail-thrush family Cinclosomatidae. Other research proposes that the quail-thrushes are themselves distinctive, leaving the whipbirds and wedgebills in a family with the proposed name Psophodidae. The name "Eupetidae" had been used for this grouping; however, because of the distant relationship of the rail-babbler to the other members of this group uncovered in research by Jønsson et al. (2007) that name is more appropriately used for the monotypic family which contains this species. Subspecies Two subspecies are recognized: P. o. olivaceus, the nominate subspecies, is found from eastern Victoria to southeastern Queensland. P. o. lateralis is found on the Atherton Tableland and is smaller and browner. Description A slim bird some in length and in weight, it is olive green with a black head and breast. It has a small black crest with a white cheek-patch on its face. It has a paler abdomen with a long dark olive-green tail tipped with white. The iris is brown and bill is black with blackish feet. The male is slightly larger than the female. Juveniles are a duller olive-brown and lack the white cheek stripes and dark throat. The eastern whipbird is generally shy, and is heard much more often than seen. Its long drawn out call – a long note, followed by a 'whip crack' (which is the source