Crow tail feathers are all the same length and will spread out like a fan. A raven’s tail feathers are longer in the center and, when the bird is in flight, take on a wedge or diamond shape.

"There are differences in body shape, and with a few feathers around the head and neck as well, but the easiest difference between the five Australian species of crow and raven is geographic range." ...

Bill is larger than other American crows, but distinctly smaller than either raven. On rare occasions individuals show white patches in wings. Juvenile: brownish cast to feathers; grayish eye ...

One of the most pyrotechnic examples of avian word play is this limerick by Dixon Lanier Merritt: Before the invention of the crowbar, crows had to drink at home. A raven has 17 rigid feathers ...