phoebe vs New World flycatcher

phoebe and New World flycatcher both are nouns.

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

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

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

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

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