chatterer vs tyrant bird

chatterer and tyrant bird both are nouns.

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

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

chatterer: passerine bird of New World tropics
tyrant bird: large American birds that characteristically catch insects on the wing

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

chatterer (noun)	tyrant bird (noun)
passerine bird of New World tropics	large American birds that characteristically catch insects on the wing
an obnoxious and foolish and loquacious talker