phoebe vs flycatcher

phoebe and flycatcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
phoebe	Yes	No	No	No
flycatcher	Yes	No	No	No

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

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

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

phoebe (noun)	flycatcher (noun)
small dun-colored North American flycatcher	any of a large group of small songbirds that feed on insects taken on the wing
	large American birds that characteristically catch insects on the wing