Cat Tail Language: What Your Cat's Tail Really Means 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 Why Do Cats Shake or Vibrate Their Tails? Vet Verified Reasons Explained Catster Cat Tail Language: 10 Secret Messages Your Cat Is Sending You With Their Tail Chewy Why does my cat shake her tail like this? : r cats