Babbler

Part of speech: noun (n.)

1. An idle talker; an irrational prater; a teller of secrets. Great babblers, or talkers, are not fit for trust. L'Estrange.

2. A hound too noisy on finding a good scent.

3. A name given to any one of family (Timalinæ) of thrushlike birds, having a chattering note.