Why does my cat shake her tail like this? : r cats How to Read Your Cat's Tail Language and Meaning PetMD Why Do Cats Shake or Vibrate Their Tails? Vet Verified Reasons Explained Catster Why Do Cats Vibrate Their Tail? This Is What They Might Be Signalling With It We Love Catz Why Do Cats Vibrate Their Tails? Reading Your Cat's Body Language Kinship Rattlesnake Tail is one of the signs of the *most* excited happy cats. It can be confused with the behavior of spraying, but in a fixed cat, its actually just an extremely excited cat!!!!! #happycat