Japanese Bush Warbler；Japanese Nightingale,ウグイス

 This bird’s call is said to be one of the three most beautiful birds call in Japan

According to Wikipedia

Depending on the definition of the range of species, the distribution area varies slightly, but roughly inhabits East Asia.

It is also distributed in the Hawaiian Islands, but it was imported from Japan.

Resident birds are distributed almost all over Japan. However, individuals in cold regions move to warm regions in winter. It has a wide range of environmental adaptability, as it inhabits from flatlands to alpine high pine belts. He prefers bamboo-rich forests and bushes, but may also appear in open areas during the call. The English name "Bush Warbler" means a bird singing in the bush. Be alert and often invisible even if you hear birds call.