Why Do Cats Vibrate Their Tail? This Is What They Might Be Signalling With It We Love Catz 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 Understanding Your Cat's Vibrating Tail Behavior All You Need To Know About Heat Cycle In Female Cats Wiggles Blog Why does my cat shake her tail like this? : r cats What does this tail shake say? : r cats