A long-tailed kingfisher of lowland forests. White underparts and rump, dark blue upperparts with pale blue shoulder and crown. Long white tail with 2 extended central tail feathers ending in spatula tips. Sits still for long periods whilst slowly pumping its tail. Very similar to Little Paradise-Kingfisher, but Common Paradise-Kingfisher is larger, with a paler crown, white rather than blue outer tail feathers and a heavier bill. The safest way to separate, however is by vocalization. Heard more often than seen. Song, a rapidly accelerating and slightly rising series of dry notes.