blue goose vs goose

blue goose and goose both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue goose	Yes	No	No	No
goose	Yes	No	Yes	No

As nouns, goose is a hypernym of blue goose; that is, goose is a word with a broader meaning than blue goose:

blue goose: North American wild goose having dark plumage in summer but white in winter
goose: web-footed long-necked typically gregarious migratory aquatic birds usually larger and less aquatic than ducks

blue goose (noun)	goose (noun)
North American wild goose having dark plumage in summer but white in winter	web-footed long-necked typically gregarious migratory aquatic birds usually larger and less aquatic than ducks
	flesh of a goose (domestic or wild)
	a man who is a stupid incompetent fool