winter wren vs Troglodytes troglodytes

winter wren and Troglodytes troglodytes both are nouns.

Word	Noun	Adjective	Verb	Adverb
winter wren	Yes	No	No	No
Troglodytes troglodytes	Yes	No	No	No

As nouns, winter wren and Troglodytes troglodytes are synonyms defined as:

winter wren and Troglodytes troglodytes: small wren of coniferous forests of Northern Hemisphere

winter wren (noun)	Troglodytes troglodytes (noun)
small wren of coniferous forests of Northern Hemisphere	small wren of coniferous forests of Northern Hemisphere