The flight of the Fiji parrotfinch is fast and undulating with rapid wingbeats, and frequent calling. It tends to fly fairly high, landing in the tree tops, then descending to seek food. Its call is a high, thin "seep" or "peep", similar to those of other parrotfinches such as blue-faced and red-throated, and is often repeated in bursts of varying length. The song is a long whistled double note similar to, but less urgent, than that of the orange-breasted myzomela, a Fijian endemic honeyeater.