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Slekta hører til i familien kråkefugler, Corvidae.
Ravn, Corvus corax "Corvus corax Common Raven" by Davidhofmann08 via Flickr, Creative Commons Attribution. | Kråke, Corvus cornix |
Kornkråke, Corvus frugilegus "Father and Son" by Foxypar4 via Flickr, Creative Commons Attribution. | Kaie, Corvus monedula "Beamish Working Museum: Jackdaw (Corvus Monedula)" by Martyn Hutchby via Flickr, Creative Commons Attribution-NoDerivs. |