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The true crows are large passerine birds that comprise the genus Corvus in the family Corvidae. Ranging in size from the relatively small pigeon-sized jackdaws (Eurasian and Daurian) to the Common Raven of the Holarctic region and Thick-billed Raven of the highlands of Ethiopia, the 40 or so members of this genus occur on all temperate continents (except South America) and several offshore and oceanic islands (including Hawaii). In the United States, the word "crow" is used to refer to the American Crow.

Crow

The true crows are large passerine birds that comprise the genus Corvus in the family Corvidae. Ranging…

A kind of crow.

Rook

A kind of crow.

Skull of <em>corvus corone</em>, or carrion crow, showing the brain cavity.

Crow skull

Skull of corvus corone, or carrion crow, showing the brain cavity.