How to tell the difference between a boy and a girl crow?

Question

looks

Answer 1

Females have slightly wider bodies than males since they lay the eggs and incubate them. Males are more likely to strut, hop, and fluff out their "baggy pants" (upper leg feathers) as they try to impress the girls.

Answer 2

I am not sure but males are usually more shining the females

are more dull