spoonbill vs wading bird

spoonbill and wading bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
spoonbill	Yes	No	No	No
wading bird	Yes	No	No	No

As nouns, wading bird is a hypernym of spoonbill; that is, wading bird is a word with a broader meaning than spoonbill:

spoonbill: wading birds having a long flat bill with a tip like a spoon
wading bird: any of many long-legged birds that wade in water in search of food

Other hypernyms of spoonbill include wader.

spoonbill (noun)	wading bird (noun)
wading birds having a long flat bill with a tip like a spoon	any of many long-legged birds that wade in water in search of food