chittering

verb

1. (form-of, gerund, participle, present)present participle and gerund of chitter

noun

1. The sound of a chitter.

   “Another bird quickly learned to imitate the song of a canary that was mated with it, but as the parrakeet improved in the performance the canary degenerated, and came at last to mingle the other bird's harsh chitterings with its own proper music.”