is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies, choughs and nutcrackers. The common English names used are corvids
(more technically) or the crow family
(more informally), and there are over 120 species. The genus Corvus
, including the jackdaws, crows and ravens, makes up over a third of the entire family.