Source : Webster's Revised Unabridged Dictionary (1913)

Chaparral \Cha`par*ral"\, n. [Sp., fr. chaparro an evergeen
   oak.]
   1. A thicket of low evergreen oaks.

   2. An almost impenetrable thicket or succession of thickets
      of thorny shrubs and brambles.

   {Chaparral cock}; fem. {Chaparral hen} (Zo["o]l.), a bird of
      the cuckoo family ({Geococcyx Californianus}), noted for
      running with great speed. It ranges from California to
      Mexico and eastward to Texas; -- called also {road
      runner}, {ground cuckoo}, {churea}, and {snake killer}

Source : WordNet®

Geococcyx californianus
     n : speedy largely terrestrial bird found from California and
         Mexico to Texas [syn: {roadrunner}, {chaparral cock}]