Why Do Cat Tails Shake and Quiver? Cats.com What Is This Cat Doing?! . . . #cat #cats #catbehavior #stitch #beautifulcats #catlover #kitten #kittens #kittenoftheday #cats_of_instagram Cat Tail Language: Common Positions & What They Mean 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 Cat Tail Language: 10 Secret Messages Your Cat Is Sending You With Their Tail Chewy Why Do Cats Wag Their Tails? We Asked a Cat Behavior Expert