ortygan vs wading bird

ortygan and wading bird both are nouns.

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

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

ortygan: any of several East Indian birds
wading bird: any of many long-legged birds that wade in water in search of food

Other hypernyms of ortygan include wader.

ortygan (noun)	wading bird (noun)
any of several East Indian birds	any of many long-legged birds that wade in water in search of food