peewit vs flycatcher

peewit and flycatcher both are nouns.

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

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

peewit: small olive-colored woodland flycatchers of eastern North America
flycatcher: large American birds that characteristically catch insects on the wing

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

peewit (noun)	flycatcher (noun)
large crested Old World plover having wattles and spurs	any of a large group of small songbirds that feed on insects taken on the wing
small olive-colored woodland flycatchers of eastern North America	large American birds that characteristically catch insects on the wing