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Nominate race has forehead, crown and ear-coverts to upperparts bright yellowish-green, uppertail-coverts slightly more yellow; very narrow white eyering (almost lacking); chin and throat to upper breast orange-yellow, remainder of underparts grayish-white, undetail-coverts yellow; iris chestnut-brown to grey-brown; vill blackish; legs bluish-grey. Differs from Z. novaeguineae in generally brighter coloration, mich narrower white eyering. Sexes alike. Juvenile apparently undescribed. Races differ mainly in coloration of head and prominence of eyering, nominate being brightest and almost lacking eyering, other three having black forehead and broad eyering: chrysolaemus has greener upperparts than nominate, and very conspicuous greenish edges on tail feathers; gregarius is more yellow and duller on back, with narrower eyering than previous and slightly more orangeish-yellow on throat, thus approaching nominate; delicatulus has whole forehead, loral line and area under eye black, very broad white eyering, greener bach than chrysolaemus, distinctly less orange throat (closely resembles race sulaensis of Z atrifons).