[1] : The Collaborative International Dictionary of English v.0.48

thrush \thrush\, n. oe. thornrusche, as. thornrysce; akin
   to ohg. drosca, droscea, droscela, and e. throstle. cf.
   throstle.
   1. zool. any one of numerous species of singing birds
      belonging to turdus and allied genera. they are noted
      for the sweetness of their songs.
      1913 webster

   note: among the best-known european species are the song
         thrush or throstle turdus musicus, the missel
         thrush see under missel, the european redwing, and
         the blackbird. the most important american species are
         the wood thrush turdus mustelinus, wilson's thrush
         turdus fuscescens, the hermit thrush see under
         hermit, swainson's thrush turdus aliciae, and
         the migratory thrush, or american robin see robin.
         1913 webster

   2. zool. any one of numerous species of singing birds more
      or less resembling the true thrushes in appearance or
      habits; as the thunderbird and the american brown thrush
      or thrasher. see brown thrush.
      1913 webster

   ant thrush. see ant thrush, breve, and pitta.

   babbling thrush, any one of numerous species of asiatic
      timaline birds; -- called also babbler.

   fruit thrush, any species of bulbul.

   shrike thrush. see under shrike.

   stone thrush, the missel thrush; -- said to be so called
      from its marbled breast.

   thrush nightingale. see nightingale, 2.

   thrush tit, any one of several species of asiatic singing
      birds of the genus cochoa. they are beautifully colored
      birds allied to the tits, but resembling thrushes in size
      and habits.

   water thrush.
      a the european dipper.
      b an american warbler seiurus noveboracensis.
          1913 webster
see also:
throstle turdus turdus musicus missel turdus mustelinus turdus fuscescens 
hermit turdus aliciae robin brown thrush ant thrush 
breve pitta babbling thrush babbler fruit thrush 
shrike thrush shrike stone thrush thrush nightingale nightingale 
thrush tit cochoa water thrush seiurus noveboracensis 

[2] : The Collaborative International Dictionary of English v.0.48

babbler \bab"bler\, n.
   1. an idle talker; an irrational prater; a teller of secrets.
      1913 webster

            great babblers, or talkers, are not fit for trust.
                                                  --l'estrange.
      1913 webster

   2. a hound too noisy on finding a good scent.
      1913 webster

   3. zool. a name given to any one of a family
      timalinae of thrushlike birds, having a chattering
      note.
      1913 webster
see also:
timalinae 

[3] : WordNet (r) 2.0

babbler
     n 1: an obnoxious and foolish and loquacious talker syn: chatterer,
           prater, chatterbox, magpie, spouter
     2: any of various insectivorous old world birds with a loud
        incessant song; in some classifications considered members
        of the family muscicapidae syn: cackler
see also:
chatterer prater chatterbox magpie spouter cackler 

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