Belgian shepherd vs Belgian sheepdog

Belgian shepherd and Belgian sheepdog both are nouns.

Word	Noun	Adjective	Verb	Adverb
Belgian shepherd	Yes	No	No	No
Belgian sheepdog	Yes	No	No	No

As nouns, Belgian shepherd and Belgian sheepdog are synonyms defined as:

Belgian shepherd and Belgian sheepdog: hardy working dog developed in Belgium for herding sheep

Belgian shepherd (noun)	Belgian sheepdog (noun)
hardy working dog developed in Belgium for herding sheep	hardy working dog developed in Belgium for herding sheep