graylag goose vs greylag

graylag goose and greylag both are nouns.

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

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

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

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

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