The common nightingale, rufous nightingale or simply nightingale  (Luscinia megarhynchos), is a small passerine bird which is best known for its powerful and beautiful song. It was formerly classed as a member of the thrush family Turdidae, but is now more generally considered to be an Old World flycatcher, Muscicapidae.[2] It belongs to a group of more terrestrial species, often called chats.