in article , Sheryl Barber at
wrote on 8/2/03 8:23 PM:

My cat has an interesting tail quiver. It is not the usual twitch or tail
slap on the floor. She actually makes it quiver very rapidly while it is
raised straight in the air. I have never noticed any of my other cats
exhibiting this behavior. Anyone familiar with this behavior and what it
means?



We call it "happy tail".

Karen