What does it mean to meet a crow without looking at the solar calendar before going out early in the morning?

In ancient times, people thought it was unlucky to meet crows when going out. However, this is just a folk saying and a prejudice. . . You can't think a crow is unlucky just because it is black all over. . . In fact, crows are no different from other birds. To some extent, it is even a beneficial bird, because it eats carrion and pests. . . At the same time, crows have the phenomenon of "feeding back", that is, after the old crows feed the young crows, when they are old and weak, the young crows will take the initiative to take the responsibility of catching food and serving their parents. This is rare in the whole animal kingdom. Therefore, when you meet a crow, you can regard it as nothing, or you can think that you have met something good ~