A distinctive medium-sized blue-and-white kingfisher with a prominent dark mask, blue crown, bright white neck and underparts, blue wings and back, and reddish undertail. Male has a white rump. Found in primary and secondary forest up to 2000 meters of elevation, often on forest edge. Combination of extensive dark mask and red undertail are diagnostic. Voice is a loud, attention-grabbing “kidek-kidek-kidek.”