feeder vs fauna

feeder and fauna both are nouns.

Word	Noun	Adjective	Verb	Adverb
feeder	Yes	No	No	No
fauna	Yes	No	No	No

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

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

feeder (noun)	fauna (noun)
an animal being fattened or suitable for fattening	a living organism characterized by voluntary movement
an animal that feeds on a particular source of food	all the animal life in a particular region or period
a machine that automatically provides a supply of some material
an outdoor device that supplies food for wild birds
a branch that flows into the main stream
someone who consumes food for nourishment