little auk vs Plautus alle

little auk and Plautus alle both are nouns.

Word	Noun	Adjective	Verb	Adverb
little auk	Yes	No	No	No
Plautus alle	Yes	No	No	No

As nouns, little auk and Plautus alle are synonyms defined as:

little auk and Plautus alle: small short-billed auk abundant in Arctic regions

Other synonyms of little auk include dovekie.

little auk (noun)	Plautus alle (noun)
small short-billed auk abundant in Arctic regions	small short-billed auk abundant in Arctic regions