What is she trying to tell me? Vibrating tail??? : r CATHELP It looks like they are vibrating. When a cat's tail shoots straight up and quivers or rattles at the tip, it is the highest form of excitement they can show. It's a What Is This Cat Doing?! . . . #cat #cats #catbehavior #stitch #beautifulcats #catlover #kitten #kittens #kittenoftheday #cats_of_instagram Why is my cat vibrating her tail? : r cats How to Read Your Cat's Tail Language and Meaning PetMD Replying to @Nicole what does that cats tail movement mean?#fyp #catbehavior #cattok #cat #petbehavior