What Your Cat's Tail Can Tell You Black Cat Wagging Tail Why Do Cats Vibrate Their Tail? This Is What They Might Be Signalling With It We Love Catz Cat Tail Vibrating: Understanding Your Feline Friend's Movements Why Does Cats Tail Vibrate: Understanding Feline Behavior Desk Cat Nest she always vibrates her tail at this exact spot very.. confused?? anyone else experienced this? : r cats