marabou stork vs stork

marabou stork and stork both are nouns.

Word	Noun	Adjective	Verb	Adverb
marabou stork	Yes	No	No	No
stork	Yes	No	No	No

As nouns, stork is a hypernym of marabou stork; that is, stork is a word with a broader meaning than marabou stork:

marabou stork: large African black-and-white carrion-eating stork; its downy underwing feathers are used to trim garments
stork: large mostly Old World wading birds typically having white-and-black plumage

marabou stork (noun)	stork (noun)
large African black-and-white carrion-eating stork; its downy underwing feathers are used to trim garments	large mostly Old World wading birds typically having white-and-black plumage