Otus asio vs hooter

Otus asio and hooter both are nouns.

Word	Noun	Adjective	Verb	Adverb
Otus asio	Yes	No	No	No
hooter	Yes	No	No	No

As nouns, hooter is a hypernym of Otus asio; that is, hooter is a word with a broader meaning than Otus asio:

Otus asio: small North American owl having hornlike tufts of feathers whose call sounds like a quavering whistle
hooter: nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes

Other hypernyms of Otus asio include bird of Minerva, bird of night, owl.

Otus asio (noun)	hooter (noun)
small North American owl having hornlike tufts of feathers whose call sounds like a quavering whistle	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