The Jacky Winter is a small grey-brown flycatcher with a faint pale eye-line and white underbody. The dark tail has prominent white outer feathers which are obvious when it lands, wagging his tail from side to side. The Jacky Winter typically sits upright on a bare branch or perch, wagging its tail and uttering its 'peter-peter' call. There are three sub-species, with slight geographical variation, darker in the south and paler in the far north and inland. This species is also known as the Brown Flycatcher, Postboy, White-tail or Peter-Peter.