predatory animal vs fauna

predatory animal and fauna both are nouns.

Word	Noun	Adjective	Verb	Adverb
predatory animal	Yes	No	No	No
fauna	Yes	No	No	No

As nouns, fauna is a hypernym of predatory animal; that is, fauna is a word with a broader meaning than predatory animal:

Other hypernyms of predatory animal include animal, animate being, beast, brute, creature.

predatory animal (noun)	fauna (noun)
any animal that lives by preying on other animals	a living organism characterized by voluntary movement
	all the animal life in a particular region or period