William Shakespeare, Henry IV, Part 2 (1597–8). Last lines. See also Mahomet's pigeon, the "pious lie", Life of Mahomet in Library of Useful Knowledge, note p. 19. Aristophanes, Aves. See Robinson's Antiquities, Greek, bk. 3, ch. 15, ad init. Ecclesiastes 10:20. Reported in Hoyt's New Cyclopedia of Practical Quotations (1922), p. 70https://en.wikiquote.org/wiki/Birds