phoebe vs tyrant bird

phoebe and tyrant bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
phoebe	Yes	No	No	No
tyrant bird	Yes	No	No	No

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

phoebe: small dun-colored North American flycatcher
tyrant bird: large American birds that characteristically catch insects on the wing

Other hypernyms of phoebe include flycatcher, New World flycatcher, tyrant flycatcher.

phoebe (noun)	tyrant bird (noun)
small dun-colored North American flycatcher	large American birds that characteristically catch insects on the wing