What is Corvidae?
{{Taxobox | name = Corvids | image = Corvus_corax_(FWS).jpg | image_width = 260px | image_caption = Common Raven (''Corvus corax'') | regnum = [[Animal]]ia | phylum = [[Chordate|Chordata]] | classis = [[Bird|Aves]] | ordo = [[Passerine|Passeriformes]] | familia = '''Corvidae''' }} [[File:House-Crow444.jpg|thumb|250px|Common crow or ''Corvus splendens'']] [[File:Calocitta collieiPCCA20051227-1964B.jpg|thumb|230px|An example of variation in the crow family: the black-throated magpie-jay of northwestern [[Mexico]]]] The '''Corvidae''' are the crow [[Family (biology)|family]]. They are all [[passerine]]s, but unusually they do not have musical voices. They are intelligent. There are over 120 species in the family. The word 'crow' is also used to describe birds in the [[genus]] ''[[Corvus]]''. This genus includes the [[crow]]s, [[jackdaw]]s and [[raven]]s. Crows are found on every [[continent]] except for the southern area of [[South America]] and [[Antarctica]]. Most crows are found in [[South America]], [[Central America]], [[Europe]] and [[Asia]]. There are 10 species each in [[Africa]], [[Australia]] and [[North America]]. A group of crows is called a ''murder'' and, indeed, they are distinctly carnivorous. == Description == Most members of the crow family are [[black]], such as crows, rooks, choughs, ravens and jackdaws. However, not all crows are black. Magpies and treepies can be black and white, or blue and green, or brown. Jays are often blue and white. Crows are some of the most intelligent birds in the world. Crows and rooks are good at using [[tools]], for example sticks or twigs. Magpies can see themselves in a [[mirror]] and they understand that it is a [[reflection]]. Many crows live near to humans in [[town]]s and [[cities]]. Some crows (such as treepies) live in [[forest]]s. They are more shy than the crows that live in cities. Some crows in [[North America]], [[Europe]] and northern [[Asia]] [[migrate]]. This means they travel to different places in [[summer]] or [[winter]]. Most crows are r