1743  (1949)  a white Whisker jack or a Jay Like [bird] wap pis ka John or wap pa whisker John.
1795  (1911)  The . . . Whisky-Jack . . . is very familiar, and . . . so much given to pilfering, that no kind of provisions it can come at, either fresh or salt, is safe from its depredations.
1888  (1890)  They are called by the men Whisky-Jacks . . . they are pretty birds about the size of a jay and of a bluish-grey colour.
1965  They. . . [Indian trappers] had lived on Canada jays, commonly known as whiskey jacks.
2n.Obs. a person trading or selling whisky, especially as an illicit business, to the Indians.