goose vs Canada goose

goose and Canada goose both are nouns.

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

As nouns, Canada goose is a hyponym of goose; that is, Canada goose is a word with a more specific, narrower meaning than goose:

goose: web-footed long-necked typically gregarious migratory aquatic birds usually larger and less aquatic than ducks
Canada goose: common greyish-brown wild goose of North America with a loud, trumpeting call

goose (noun)	Canada goose (noun)
web-footed long-necked typically gregarious migratory aquatic birds usually larger and less aquatic than ducks	common greyish-brown wild goose of North America with a loud, trumpeting call
flesh of a goose (domestic or wild)
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