guinea fowl vs poultry

guinea fowl and poultry both are nouns.

Word	Noun	Adjective	Verb	Adverb
guinea fowl	Yes	No	No	No
poultry	Yes	No	No	No

As nouns, poultry is a hypernym of guinea fowl; that is, poultry is a word with a broader meaning than guinea fowl:

guinea fowl: a west African bird having dark plumage mottled with white; native to Africa but raised for food in many parts of the world
poultry: a domesticated gallinaceous bird thought to be descended from the red jungle fowl

Other hypernyms of guinea fowl include domestic fowl, fowl.

guinea fowl (noun)	poultry (noun)
a west African bird having dark plumage mottled with white; native to Africa but raised for food in many parts of the world	a domesticated gallinaceous bird thought to be descended from the red jungle fowl
	flesh of chickens or turkeys or ducks or geese raised for food