What does it mean that crows nest on the roof?

Old people often say that the bird's nest here must be auspicious. It is not ideal, inappropriate and pitiful for birds and animals to give birth to children in their nests at will. He would never choose a cave casually, just like choosing a feng shui workshop. As long as he doesn't affect your life, that's it. Golden-winged birds still nest on the Buddha's head.