Cygnus cygnus vs whooper swan

Cygnus cygnus and whooper swan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cygnus cygnus	Yes	No	No	No
whooper swan	Yes	No	No	No

As nouns, Cygnus cygnus and whooper swan are synonyms defined as:

Cygnus cygnus and whooper swan: common Old World swan noted for its whooping call

Other synonyms of Cygnus cygnus include whooper.

Cygnus cygnus (noun)	whooper swan (noun)
common Old World swan noted for its whooping call	common Old World swan noted for its whooping call