green peafowl vs peafowl

green peafowl and peafowl both are nouns.

Word	Noun	Adjective	Verb	Adverb
green peafowl	Yes	No	No	No
peafowl	Yes	No	No	No

As nouns, peafowl is a hypernym of green peafowl; that is, peafowl is a word with a broader meaning than green peafowl:

green peafowl: peafowl of southeast Asia
peafowl: very large terrestrial southeast Asian pheasant often raised as an ornamental bird

Other hypernyms of green peafowl include bird of Juno.

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