Pterocnemia pennata

from WordNet (r) 3.0 (2006)

Pterocnemia pennata
    n 1: smaller of two tall fast-running flightless birds similar
         to ostriches but three-toed; found from Peru to Strait of
         Magellan [syn: {rhea}, {nandu}, {Pterocnemia pennata}]

from The Collaborative International Dictionary of English v.0.48

Nandou \Nan"dou\, Nandu \Nan"du\, n. [Braz. nhandu or yandu.]
   (Zool.)
   Any one of three species of South American ostriches of the
   genera {Rhea} and {Pterocnemia}, especially the smallest,
   {Pterocnemia pennata} (formerly {Rhea Americana}), called
   also the {common rhea}. They are tall fast-running flightless
   birds similar to ostriches but three-toed, found from Peru to
   the Straits of Magellan. See {Rhea}. [Written also {nandow}.]
   [1913 Webster + WordNet 1.5]