peafowl vs bird of Juno

peafowl and bird of Juno both are nouns.

Word	Noun	Adjective	Verb	Adverb
peafowl	Yes	No	No	No
bird of Juno	Yes	No	No	No

As nouns, peafowl and bird of Juno are synonyms defined as:

peafowl and bird of Juno: very large terrestrial southeast Asian pheasant often raised as an ornamental bird

peafowl (noun)	bird of Juno (noun)
very large terrestrial southeast Asian pheasant often raised as an ornamental bird	very large terrestrial southeast Asian pheasant often raised as an ornamental bird