leipoa vs mound builder

leipoa and mound builder both are nouns.

Word	Noun	Adjective	Verb	Adverb
leipoa	Yes	No	No	No
mound builder	Yes	No	No	No

As nouns, mound builder is a hypernym of leipoa; that is, mound builder is a word with a broader meaning than leipoa:

leipoa: Australian mound bird; incubates eggs naturally in sandy mounds
mound builder: large-footed short-winged birds of Australasia; build mounds of decaying vegetation to incubate eggs

Other hypernyms of leipoa include megapode, mound-bird, mound bird, scrub fowl.

leipoa (noun)	mound builder (noun)
Australian mound bird; incubates eggs naturally in sandy mounds	large-footed short-winged birds of Australasia; build mounds of decaying vegetation to incubate eggs