Grus americana vs whooping crane

Grus americana and whooping crane both are nouns.

Word	Noun	Adjective	Verb	Adverb
Grus americana	Yes	No	No	No
whooping crane	Yes	No	No	No

As nouns, Grus americana and whooping crane are synonyms defined as:

Grus americana and whooping crane: rare North American crane having black-and-white plumage and a trumpeting call

Other synonyms of Grus americana include whooper.

Grus americana (noun)	whooping crane (noun)
rare North American crane having black-and-white plumage and a trumpeting call	rare North American crane having black-and-white plumage and a trumpeting call