Poecilodryas hypoleuca Gray, GR, 1859

Nominate race has white supercilium from bill to behind eye, white patch beneath eye; crown, side of head and upperparts black; upperwing and tail black, remiges with broad white patch near bases (forming bar on folded wing, prominent stripe in flight); while below, black patch on side of breast; iris dark brown; bill black; legs grey. Sexes alike. Juvenile is plain brown on crown and back, darker brown on chin, breast and flanks, and white on abdomen and undertail- coverts; immature as adult, but retains juvenile wing- coverts. Races differ minimally: steini is browner above than nominate; hermani has upperparts blacker, and white supraloral and wing patch larger.