A small to medium-sized honeyeater (14 to 16 cm). The male is dark grey above, paler and more grey-brown below, with a broad yellow patch on each wing and side of tail and a darker blackish crescent-shaped marking down each side of the white breast. The throat is also white. The female is duller and more brown than the male. Similar species include the New Holland Honeyeater P. novaehollandiae and White-cheeked Honeyeater P. niger, both of which have predominantly white underparts, heavily streaked with black. The Crescent Honeyeater occurs in south-eastern Australia (including Tas.) from north of Syden to the SA border. A second subspecies is found on Kangaroo Island and on nearby mainland SA. It feeds on nectar, fruit and some insects within a variety of wooded and heath habitats.