What is "common redstart"

n. A small passerine bird, ''Phoenicurus phoenicurus''.

The common redstart (Phoenicurus phoenicurus), or often simply redstart, is a small passerine bird in the redstart genus Phoenicurus. Like its relatives, it was formerly classed as a member of the thrush family, (Turdidae), but is now known to be an Old World flycatcher (family Muscicapidae).