Strix varia vs owl

Strix varia and owl both are nouns.

Word	Noun	Adjective	Verb	Adverb
Strix varia	Yes	No	No	No
owl	Yes	No	No	No

As nouns, owl is a hypernym of Strix varia; that is, owl is a word with a broader meaning than Strix varia:

Strix varia: large owl of eastern North America having its breast and abdomen streaked with brown
owl: nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes

Other hypernyms of Strix varia include bird of Minerva, bird of night, hooter.

Strix varia (noun)	owl (noun)
large owl of eastern North America having its breast and abdomen streaked with brown	nocturnal bird of prey with hawk-like beak and claws and large head with front-facing eyes