Authors:

That field hath eyen, and the wood hath ears.

Geoffrey Chaucer, Charles Cowden Clarke (1835). “The Riches of Chaucer: In which His Impurities Have Been Expunged, His Spelling Modernised, His Rhythm Accentuated and His Obsolete Terms Explained; Also Have Been Added a Few Explanatory Notes and a New Memoir of the Poet”, p.103
That field hath eyen, and the wood hath ears.