Asio otus vs hooter

Asio otus and hooter both are nouns.

Word	Noun	Adjective	Verb	Adverb
Asio otus	Yes	No	No	No
hooter	Yes	No	No	No

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

Asio otus: slender European owl of coniferous forests with long ear tufts
hooter: nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes

Other hypernyms of Asio otus include bird of Minerva, bird of night, owl.

Asio otus (noun)	hooter (noun)
slender European owl of coniferous forests with long ear tufts	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