graylag vs greylag goose

graylag and greylag goose both are nouns.

Word	Noun	Adjective	Verb	Adverb
graylag	Yes	No	No	No
greylag goose	Yes	No	No	No

As nouns, graylag and greylag goose are synonyms defined as:

graylag and greylag goose: common grey wild goose of Europe; ancestor of many domestic breeds

Other synonyms of graylag include Anser anser, graylag goose, greylag.

graylag (noun)	greylag goose (noun)
common grey wild goose of Europe; ancestor of many domestic breeds	common grey wild goose of Europe; ancestor of many domestic breeds