Púca
"The púca (Common tongue, poo-kha; plural púcaí), are a lesser species of fae that are known for their shapeshifting abilities. This makes them a hard species to study for one does not know when they are seeing an ordinary animal or one of the púca. When they do reveal their humanoid form, however, they tend to keep a certain animalistic feature.
From my studies I also believe that different tribes or groups of púca specialise in certain animals depending on where they choose to live. Records have them appearing as everything from bats and foxes to griffons, dragons and kelpies.
Compared to most other fae outlined in this book the púca are considered backwards even amongst their own kind. Females are relegated to the house and childrearing whilst the males are violent and trained for war from a young age in brutal rituals many do not survive."
- Exert from The Faewylds, by Xanth Erabia