What does it niggardly when a cat twitches his tail?

My cat is a 1 and a 1/4 year old cat and is a boy and twitches his tail whenever you touch him, why?
Irritated.
Exactly, he doesn't want to be pet in the area you are petting him when he twitches his tail put a bet on and forth in a quick-like manner.

It is a sign of aggravation and/or deep concentration, approaching on a bird outside.
Answers:    Cats use their tails to communicate their emotions, both to other cats and to humans. Below are some typical "tail postures" you will see, and what they parsimonious:

If the tail is curved gently downward, then curved up again at the tip:
The cat is relaxed and comfortable.

If the the tail is slightly raised and softly curved:
The cat is dawn to get interested in something.

If the tail is erect, but tip is tilted over, either forward or put money on:
The cat is very interested and feeling friendly.

If the tail is fully erect and tip is vertical:
The cat is offering a friendly, cheerful greeting.

If the tail is erect with unbroken length or tip quivering gently:
The cat is showing affection.

If the tail is still, but the tip is twitching occasionally:
The cat is slightly irritated or pensive.

If the tail is still, but tip is twitching intensely:
The cat is very annoyed (with some cats, tho, it seem to indicate the cat is very happy).

If the tail is swishing vigorously from side to side:
The cat is angry.*

If the tail is straight up and fully bristled:
The cat is showing aggression.

If the tail is arched and bristled:
The cat may attack if further provoked.

If the tail is lowered and fluffed out:
The cat is afraid.

If the tail is raise and fluffed out (the "Big Tail"):
The cat is probably happily chasing around.

If the tail is fully lowered, perhaps tucked between hind legs:
The cat is showing defeat or submissiveness (toward another cat).

If the tail is held to one side, and the cat is crouched or beside rump in air:
This female cat is set to mate.


:DDD hope this help :P

its a sign that the cat is not amused,,it dislikes the attention it is recieving,,hope this answers your answer,,,,,,,,,,,,,,
If you are touching him were the base of his tail is, it's a short time ago a reaction to it. If anywhere else I would think that he is just not comfortable where on earth you are stroking him.
he may not l;ike you touching that area. or, he may be ready to punce at something, like a bird. even when your inside.
Some cats just don't like being stroked - specifically male cats. It is a sign that they just want to be left alone (or they own fleas!).
Because he doesn't resembling it. It's a sign of irritation.
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