A Japanese nightingale is little bird which has beautiful twitter and his back is greenish brown and his abdomen is gray.
We are keeping them as our pets from ancient times. Japanese compare their twitter to "Ho-hokekyo-''. That bird has many nicknames, because they were composed in Japanese poem.

There are passages which are sounded like Japanese nightingale's twitter while treading on there.
Chionin which is temple in Kyoto has famous that passage.
That is Japanese characteristic style of architectuer which called ''Uguisubari" in Japan.

Moreover, Japanese nightingale is spring word which must inclued in order to indicating season in a Japanese poem.