 Not all mentions of " chough " refer to this species . Because of the origins of its name , when Shakespeare writes of " the crows and choughs that wing the midway air " [ King Lear , act 4 , scene 6 ] or Henry VIII 's Vermin Act of 1532 is " ordeyned to dystroye Choughes , Crowes and Rookes " , they are clearly referring to the jackdaw . 
