How can you tell which is a a female Crow or Raven and which is a male?

Question

What is the distinguishing characteristic that shows which is a Female Crow or Raven from a Male. Is there some kind of mark near the beak, or something else?

Answer 1

Both sexes are similar, and it is difficult to tell them apart. The sexes are similar in all corvid species. This family (corvidae) includes ravens, crows, jays, magpies and a few other birds as well.

The only difference between male  and female  Corvids are that the females lay eggs. That is it.

Answer 2

There is no way to tell by physical appearance alone, as to whether a crow is male or female. DNA testing of blood will indicate s*x. Close study of crows in their daily life, especially during nesting season may provide a clue as to s*x, however, this is not something that many people will be able to observe.While both raven sexes are alike in plumage, but male slightly larger on average.

Answer 3

There really is no way to tell them apart besides behavioral observations or blood tests.

Answer 4

these birds lack any overt sexually dimorphic mark (visual indicators of s*x).  The males are larger than the females, otherwise visually it is very hard to tell them apart.