Crows are black birds known for their smartness they like to damage crops
The genus Corvus is made up of crows, ravens and rooks. These birds are all part of the Corvidae family, which includes jays, magpies and nutcrackers. There are about 40 species of crow, according to PBS, so there are many different sizes of crows.
On the BBC big school bird watch we saw 5 crows.