Source : Webster's Revised Unabridged Dictionary (1913)

Dunnock \Dun"nock\, n. [Cf. {Dun},a.] (Zo["o]l.)
   The hedge sparrow or hedge accentor. [Local, Eng.]

Source : WordNet®

dunnock
     n : small brownish European songbird [syn: {hedge sparrow}, {sparrow},
          {Prunella modularis}]