owl vs hooter

owl and hooter both are nouns.

Word	Noun	Adjective	Verb	Adverb
owl	Yes	No	No	No
hooter	Yes	No	No	No

As nouns, owl and hooter are synonyms defined as:

owl and hooter: nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes

Other synonyms of owl include bird of Minerva, bird of night.

owl (noun)	hooter (noun)
nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes	nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes
	a device on an automobile for making a warning noise
	informal terms for the nose