? Obs. Abbreviation of JACOBIN sb.3 (variety of pigeon). Also Jack pigeon.
1741. Compl. Fam. Piece, III. 512. The Tame or House Pidgeons are called Barbels, Jacks, Crappers…. The small Jack Pidgeon is a good Breeder.
1812. J. Nott, Dekker’s Gulls Hornbk., 76. The jacobine, or jack vulgarly called.
