Blue-and-White Flycatcher,オオルリ

The blue-and-white flycatcher (Cyanoptila cyanomelana) is a migratory songbird in the Old World flycatcher family Muscicapidae. The species is also known as the Japanese flycatcher. It breeds in Japan, Korea, and in parts of north eastern China and the Russian Far East. It winters in South East Asia, especially in Vietnam, Cambodia, Thailand, Sumatra, and Borneo. This species has been recorded as a vagrant from the Sinharaja Rainforest in Sri Lanka in 2014.（Cited from Wikipedia）

This bird is said to be in top three beautiful songbirds in Japan.