"Why a Duck?" is a comedy routine featured in the Marx Brothers movie The Cocoanuts (1929). In a scene in which Groucho and Chico are discussing a map, Groucho mentions the presence of a viaduct between the mainland and a peninsula. Chico, who is playing the role of an immigrant with poor English skills, replies "Why a duck?" This leads into a long schtick with Chico responding "Why a no chicken?", "I catch ona why a horse", and so forth.