The Manciple's Tale

The white crow saw Phoebus' wife and her lover “working” together, and said nothing until Phoebus returned home, when the crow sang “Cokkow! Cokkow!” (Cuckold! Cuckold!). Pheobus initially thought the bird sang a song he did not recognize, but the crow clarified that his wife had had sex with a man of little reputation on his bed.