hawk owl vs Surnia ulula

hawk owl and Surnia ulula both are nouns.

Word	Noun	Adjective	Verb	Adverb
hawk owl	Yes	No	No	No
Surnia ulula	Yes	No	No	No

As nouns, hawk owl and Surnia ulula are synonyms defined as:

hawk owl and Surnia ulula: grey-and-white diurnal hawk-like owl of northern parts of the Northern Hemisphere

hawk owl (noun)	Surnia ulula (noun)
grey-and-white diurnal hawk-like owl of northern parts of the Northern Hemisphere	grey-and-white diurnal hawk-like owl of northern parts of the Northern Hemisphere