What is it that makes my cat make clicking noises while going after a fly?

Question

While she watches a fly on the wall, she sits up and starts making this odd noise.

Her mouth looks like it's having a seizure over and over again, really really fast while she makes this odd pitch sound - slightly meowing, but clicking at the same time.

She almost sounds like a locust.

I'm not scared, but I'm wondering where she could get it from.

Answer 1

The first time i saw my cat do that i thought something was wrong with him lol

After doing a little research found out its just a natural instinct they make then they see something they want to "hunt"

Answer 2

It's called fretting, nothing to be concerned about. It's a hunting instinct. If you watch nature documentaries, you will see the big cats doin it too.

Answer 3

its just a hunting instinct  that some cats will do if they are focused  on an object...its called chattering if  she does to you  and shes just trying to communicate :)

Answer 4

haha, my cat does it too. ive always wondered about that. :)

Answer 5

It's called "barking".

Only some cats do it.

Its really funny!

Its normal, its just instinct.

Answer 6

I thought it was called "chattering".  Well, anyways, its just this thing cats, wild and domestic do when they are hunting something.  My cat does it ALL the time.  She will even chatter at me if I chatter at her lol.