Cat Nights begin on August 17. This term harks back to the days when people believed in witches. A rather obscure old Irish legend said that a witch could turn herself into a cat eight times, but on the ninth time (August 17), she couldn’t regain her human form. This bit of folklore also gives us the saying, “A cat has nine lives.” Because August is a yowly time for cats, this may have prompted the speculation about witches on the prowl in the first place. Also, nights continue to get longer. Cats, crepuscular creatures, are nocturnal hunters. Their superior night vision means that the nights belong to them.