oscine bird vs suborder Passeres

oscine bird and suborder Passeres both are nouns.

Word	Noun	Adjective	Verb	Adverb
oscine bird	Yes	No	No	No
suborder Passeres	Yes	No	No	No

oscine bird (noun)	suborder Passeres (noun)
passerine bird having specialized vocal apparatus	two names for the suborder of typical songbirds