hornbill vs coraciiform bird

hornbill and coraciiform bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
hornbill	Yes	No	No	No
coraciiform bird	Yes	No	No	No

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

hornbill: bird of tropical Africa and Asia having a very large bill surmounted by a bony protuberance; related to kingfishers
coraciiform bird: chiefly short-legged arboreal nonpasserine birds that nest in holes

hornbill (noun)	coraciiform bird (noun)
bird of tropical Africa and Asia having a very large bill surmounted by a bony protuberance; related to kingfishers	chiefly short-legged arboreal nonpasserine birds that nest in holes