bird of Juno vs peacock

bird of Juno and peacock both are nouns.

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

As nouns, peacock is a hyponym of bird of Juno; that is, peacock is a word with a more specific, narrower meaning than bird of Juno:

bird of Juno: very large terrestrial southeast Asian pheasant often raised as an ornamental bird
peacock: male peafowl; having a crested head and very large fanlike tail marked with iridescent eyes or spots

Other hyponyms of bird of Juno include pea-chick, peachick, peahen, blue peafowl, Pavo cristatus, green peafowl, Pavo muticus.

bird of Juno (noun)	peacock (noun)
very large terrestrial southeast Asian pheasant often raised as an ornamental bird	male peafowl; having a crested head and very large fanlike tail marked with iridescent eyes or spots
	European butterfly having reddish-brown wings each marked with a purple eyespot