wader vs stork

wader and stork both are nouns.

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

As nouns, stork is a hyponym of wader; that is, stork is a word with a more specific, narrower meaning than wader:

wader: any of many long-legged birds that wade in water in search of food
stork: large mostly Old World wading birds typically having white-and-black plumage

wader (noun)	stork (noun)
any of many long-legged birds that wade in water in search of food	large mostly Old World wading birds typically having white-and-black plumage