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

ousel \ou"sel\ oo^"z'l, n. oe. osel, as. =osle; akin to
   g. amsel, ohg. amsala, and perh. to l. merula blackbird. cf.
   merle, amsel. zool.
   one of several species of european thrushes, especially the
   blackbird merula merula, or turdus merula, and the
   mountain or ring ousel turdus torquatus. written also
   ouzel.
   1913 webster

   rock ousel zool., the ring ousel.

   water ousel zool., the european dipper cinclus
      aquaticus, and the american dipper cinclus
      mexicanus.
      1913 webster
see also:
merle amsel merula merula turdus merula turdus torquatus ouzel 
rock ousel water ousel cinclus aquaticus cinclus mexicanus 

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

ouzel \ou"zel\, n. zool.
   same as ousel.
   1913 webster

         the mellow ouzel fluted in the elm.      --tennyson.
   1913 webster
see also:
ousel 

[3] : WordNet (r) 2.0

ouzel
     n : common black european thrush syn: blackbird, merl, merle,
          ousel, european blackbird, turdus merula
see also:
blackbird merl merle ousel european blackbird turdus merula 

Ouzel >> O Words
Ouzel, definition of term: Ouzel
ouzel_pag1.html

Water Ouzel >> W Words
Water Ouzel, definition of term: Water Ouzel
water+ouzel_pag1.html