Once again, Friday the 13th is at hand, one of the most abiding superstitions despite little agreement about its origins. Superstitions date from a time when the workings of the physical world were unknown. Calamitous events such as earthquakes, solar eclipses, plagues and death seemingly came out of nowhere.
Many superstitions centered on birds, most likely because they fly high to the heavens where the gods were thought to hang out. Birds were seen as carrying messages from the gods, and because the gods wielded power capriciously the messages seldom were glad tidings.