Hemipus hirundinaceus
Family: Vangas, Helmetshrikes, and Allies · Status: Rare visitor · Size: 13.5–14.5 cm · Conservation: Least Concern
Breeds from the Thai-Malay Peninsula to Sumatra, Java, and Borneo.
Similar to Pied Triller but easily separated by smaller size and lack of white wing-patch and supercilium. Male has uniform black upperparts and white underparts. Female has browner upperparts. Juvenile resembles female and has browner wash across upper breast.
Forest, forest edge, freshwater swamp forest, and mangroves.
Flies short sorties to snap prey out of the air, returning to the same, typically exposed perch.