Definition of "chatterer"

chatterer

noun
plural chatterers
1. A person who chatters; a chatterbox.
  Quotations
  Yes, I am a chatterer, indeed, to interrupt you so often, Monsieur.
  1845, Marie Joseph Eugène Sue, The Mysteries of Paris
  “I don't mean all of your friends—only a small proportion—which, however, connects your circle with that deadly, idle, brainless bunch—the insolent chatterers at the opera, the gorged dowagers, […] the chlorotic squatters on huge yachts, the speed-mad fugitives from the furies of ennui, the neurotic victims of mental cirrhosus, […]!”
  1907 August, Robert W[illiam] Chambers, chapter VI, in The Younger Set, New York, N.Y.: D. Appleton & Company
  Indeed the difficulty was to get him to stop talking, for, like all squirrels, he was a chatterer.
  1951, C. S. Lewis, chapter 6, in Prince Caspian, Collins, published 1998
2. Any of several passerine birds, mostly from South America; especially the cotingas.
  Quotations
  Why is the variegated chatterer of South America also called the bell-bird?
  1832, John Timbs, Knowledge for the People
  The flight of the Chatterer bears much resemblance to that of the starling.
  1846, Henry Leonard Meyer, Coloured illustrations of British birds and their eggs