From The Collaborative International Dictionary of English v.0.48 :
Corncrake \Corn"crake`\ (k[^o]rn"kr[=a]k`), n. (Zool.)
A bird ({Crex crex or Crex pratensis) which frequents
grain fields; the European crake or land rail; -- called also
corn bird.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 :
Crex \Crex\ n.
a genus of birds including the corncrake ({Crex crex).
Syn: genus Crex.
[WordNet 1.5]
From WordNet (r) 3.0 (2006) :
Crex crex
n 1: common Eurasian rail that frequents grain fields [syn:
corncrake, land rail, Crex crex]