shoebird vs wader

shoebird and wader both are nouns.

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

As nouns, wader is a hypernym of shoebird; that is, wader is a word with a broader meaning than shoebird:

shoebird: large stork-like bird of the valley of the White Nile with a broad bill suggesting a wooden shoe
wader: any of many long-legged birds that wade in water in search of food

Other hypernyms of shoebird include wading bird.

shoebird (noun)	wader (noun)
large stork-like bird of the valley of the White Nile with a broad bill suggesting a wooden shoe	any of many long-legged birds that wade in water in search of food