The Blue-and-white Flycatcher (Cyanoptila cyanomelana) is a migratory songbird in the Old World flycatcher family Muscicapidae. The species, also known as the Japanese Flyctacher, is the only species in the genus Cyanoptila. It breeds in Japan, Korea, and in parts of north eastern China and far eastern Russia. It winters in South East Asia, especially in Vietnam, Cambodia, Thailand, Sumatra and Borneo.
Bird description from Wikipedia