A nightingale is a small reddish-brown or tawny migratory bird (Motacilla or Daulias luscinia), celebrated for the melodious notes which the male utters by night as well as by day during the breeding and nesting season. Also, it can be a popular or local name for certain flowers.
In Japan, a Nightingale floor is a floor that emits a high-pitched sound when it is trodden on.