Step 1 : Introduction to the question "What is a clowder?"
The most commonly used collective noun for a group of domesticated cats is a "clowder." There are varying names for different types of cats in groups. A group of kittens is generally called a litter but in some circles the bundle of kitty cuteness may be an intrigue or a kindle. According to the Oxford English Dictionary, however, the standard noun used to denote a group of domestic cats is clowder. Source: Reference.com