Rhaphidura leucopygialis
Family: Swifts · Status: Former resident and very rare visitor · Size: 11 cm · Conservation: Least Concern
Occurs from southern Myanmar and the Thai-Malay Peninsula to Sumatra, Java and Borneo.
Has blackish underparts, dark bluish-glossed upperparts, prominent silvery-white lower back, rump and uppertail-coverts, short square-cut tail, and very broad paddle-shaped wings with spines extending from the tail-tip. Juvenile has shorter uppertail-coverts (not reaching the tail-tip) and less glossy plumage.
Forested areas.
Roosts in large tree hollows in the emergent canopy.