genus Corvus
genus Corvus-
Any of several large , glossy , black birds of the genus corvus , having a characteristic raucous call , especially c.brachyrhynchos of North america .
鸦任一种鸦属的大型的、亮黑色鸟类，能发出嘶哑的特有叫声，尤指生活于北美洲的短嘴鸦。
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Any of more than 20 species of Black perching Birds ( see passerine ) of the genus Corvus ( family Corvidae ) that are smaller than most ravens and have a thinner Bill .
雀形目鸦科鸦属二十多种黑色鸣禽的俗称，比大多数渡鸦小，嘴也不那么厚实。