A small blue finch with conspicuous red tail and an emerald-green back. Females duller, with green extending to nape. Juveniles dull green, with gray head and pale bill, but still show red tail. Singles, pairs, or flocks feed on or near the ground in forests, open woodlands, and thickets within the lowlands and mountains. An undescribed parrotfinch has been documented on Mount Mutis in Timor; Tricolored differs from it in lacking red on the face. Calls include soft, high-pitched “seet” and “sit” notes.