Pye /ˈpaɪ/
  Pie, n.
  1. Zool. (a) A magpie. (b) Any other species of the genus Pica, and of several allied genera. [Written also pye.]
  2. R. C. Ch. The service book.
  3. Pritn. Type confusedly mixed. See Pi.
  By cock and pie, an adjuration equivalent to “by God and the service book.” --Shak.
  Tree pie Zool., any Asiatic bird of the genus Dendrocitta, allied to the magpie.
  Wood pie. Zool. See French pie, under French.