Not only in earlier times, even today people consider omen ominous. Like when someone sneezes while going for some work or if the cat bites the way, then people consider it as a bad omen. Even though there is no scientific basis for these things, there are many beliefs about omen-ominant among people. On the days of Pitru Paksha, crow is given grass. It is believed that crows are the form of manes. Today, on the basis of similar beliefs and knowledge about crow, we know when the appearance of a crow is considered inauspicious and when the appearance of a crow gives wealth.