bee eater vs coraciiform bird

bee eater and coraciiform bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
bee eater	Yes	No	No	No
coraciiform bird	Yes	No	No	No

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

bee eater: colorful chiefly tropical Old World bird having a strong graceful flight; feeds on especially bees
coraciiform bird: chiefly short-legged arboreal nonpasserine birds that nest in holes

bee eater (noun)	coraciiform bird (noun)
colorful chiefly tropical Old World bird having a strong graceful flight; feeds on especially bees	chiefly short-legged arboreal nonpasserine birds that nest in holes