1. 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。
2. 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。
3. 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。
4. 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。
5. 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。