"chatterer" in the noun sense
1. chatterer, babbler, prater, chatterbox, magpie, spouter
an obnoxious and foolish and loquacious talker
2. cotinga, chatterer
passerine bird of New World tropics
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License