game bird vs pheasant

game bird and pheasant both are nouns.

Word	Noun	Adjective	Verb	Adverb
game bird	Yes	No	No	No
pheasant	Yes	No	No	No

game bird (noun)	pheasant (noun)
any bird (as grouse or pheasant) that is hunted for sport	large long-tailed gallinaceous bird native to the Old World but introduced elsewhere
	flesh of a pheasant; usually braised