limpkin vs wading bird

limpkin and wading bird both are nouns.

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

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

limpkin: wading bird of Florida, Cuba and Jamaica having a drooping bill and a distinctive wailing call
wading bird: any of many long-legged birds that wade in water in search of food

Other hypernyms of limpkin include wader.

limpkin (noun)	wading bird (noun)
wading bird of Florida, Cuba and Jamaica having a drooping bill and a distinctive wailing call	any of many long-legged birds that wade in water in search of food