brant goose vs brent goose

brant goose and brent goose both are nouns.

Word	Noun	Adjective	Verb	Adverb
brant goose	Yes	No	No	No
brent goose	Yes	No	No	No

As nouns, brant goose and brent goose are synonyms defined as:

brant goose and brent goose: small dark geese that breed in the north and migrate southward

Other synonyms of brant goose include brant, brent.

brant goose (noun)	brent goose (noun)
small dark geese that breed in the north and migrate southward	small dark geese that breed in the north and migrate southward