In heraldry, crows, rooks, and ravens are not distinguished from each other. As with all birds that are not eagles, a crow or raven is depicted by default as close, but they can uniquely be blazoned as speaking. Crows may also be called corbies, as in the canting arms of Corbet.[1]
The Cornish chough is also depicted in heraldry, which looks similar but has a red beak and feet. Anciently, the Cornish chough is sometimes called a beckit.[2][1]
On the coat of arms of County Dublin and Fingal in Ireland, the crow was adapted from the raven banner of the Vikings, who had settled in the area.[3][4]Lisbon, the capital of Portugal and Wagga Wagga, Australia have crows in their coats-of-arms.[5][6]
The Corbet (Corbel, Corby, Corbe) family from the Channel Islands are also names having been corrupted over time from the Latin word corvus, for raven.[8]