Why Do Cats Vibrate Their Tails? Reading Your Cat's Body Language Kinship Your cat's tail is literally talking to you are you listening? That little flick? Warning. That slow swish? Full hunter mode. That tiny shake when you walk in the door? Pure Why Do Cat Tails Shake and Quiver? Cats.com How to Read Your Cat's Tail Language and Meaning PetMD Anyone else's cat do this? She vibrates her tail when she is happy to see me Why your cat wags their tail: Four reasons explained Animal Friends