Source : Webster's Revised Unabridged Dictionary (1913)

Ovenbird \Ov"en*bird`\, n. (Zo["o]l.)
   (a) Any species of the genus {Furnarius}, allied to the
       creepers. They inhabit South America and the West Indies,
       and construct curious oven-shaped nests.
   (b) In the United States, {Seiurus aurocapillus}; -- called
       also {golden-crowned thrush}.
   (c) In England, sometimes applied to the willow warbler, and
       to the long-tailed titmouse.

Source : WordNet®

ovenbird
     n 1: American warbler; builds a dome-shaped nest on the ground
          [syn: {Seiurus aurocapillus}]
     2: small brownish South American birds that build oven-shaped
        clay nests