High Quality Content by WIKIPEDIA articles! Corvidae 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 or the crow family, and there are over 120 species. The genus Corvus, including the jackdaws, crows and ravens, makes up over a third of the entire family. They are considered the most intelligent of the birds having demonstrated self-awareness in mirror tests and tool making ability skills until recently regarded as solely the province of humans and a few other higher mammals.

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