jess

1. (falconry) A short strap fastened around the leg of a bird used in falconry, to which a leash may be fastened.Examples: "Haukes haue about theyr legges gesses made of lether moste comonly, some of silke which should no lenger but that the knottes of them should appere in ye myddes of the left hande betwene the longe fynger and the leche fynger bicause the lewnes should be fastened to them with a payre of tyrettes, whiche tyrettes should rest vpon the lewnes and not vpon gesses, for hangyng and fastyng vpon trees when she fleyth […]"; "I am that cedar; shake me not too much; And you the eagles; soar ye ne’er so high, I have the jesses that will pull you down;"; "[…] If I do prove her haggard, Though that her jesses were my dear heartstrings, I’ld whistle her off and let her down the wind, To pray at fortune."