Griffin

A griffin is a creature with the body of a cat, and the head, wings, and front feet of a bird.

Subspecies
There are several different kinds of griffins.

Tufted
Tufted griffins have feathery ear tufts on their heads, and are the biggest kind, a bit bigger than a liger. They have an eagle-like appearance.

Un-tufted
(not their official name yet, just a space-filler :/) These griffins do not have ear tufts, and are a bit smaller and more common. They are also more easily tamed and often used as riding griffins.

House
House griffins are very small, about the size of a small dog or a cat. They usually have straight beaks, rather than hooked ones, and are not as feirce. They are often kept as pets, hence their name.