The propensity of the Japanese bush warbler to sing has led to the birds being kept as cage birds. Robert Young records that to encourage singing the cages of kept birds were covered with a wooden box with a small paper window that allowed only subdued light in. Along with the return of the
barn swallow the bush warbler's call is viewed by Japanese as a herald of springtime. It is one of the favorite motifs of
Japanese poetry, featured in many poems including those in or . In
haiku and , is one of the which signify the early spring. In poetry the bird is associated with the
ume blossom, and appears with ume on playing cards. There is also a popular Japanese sweet named (Uguisu Balls) which consists of brown and white balls meant to resemble ume flower buds. However, the distinctive song is not usually heard until later in spring, well after the ume blossoms have faded. In haiku, the bird with this song is known as , and the song is called . The beauty of its song led to the English name
Japanese Nightingale, although the Japanese bush warbler does not sing at night as the European
nightingale does. This name is no longer commonly used. An ( = woman) is a female announcer at Japanese baseball games, or a woman employed to advertise products and sales with a microphone outside retail stores. These women are employed because of their beautiful 'warbling' voices. They are also employed to make public announcements for politicians in the lead-up to elections. In Japanese architecture there is a type of floor known as , which is generally translated into English as "nightingale floor". These floors have squeaking floorboards that resemble the Japanese bush warbler's low chirping, and are meant to be so designed to warn sleepers of the approach of an intruder.
Examples can be seen at
Eikan-dō temple,
Nijō Castle and
Chion-in temple in Kyoto. The
nightingale's droppings contain an enzyme that has been used for a long time as a
skin whitening agent and to remove fine wrinkles. It is sometimes sold as " powder". The droppings are also used to remove stains from
kimono. == Songs ==