Jess (falconry) chase something it shouldn't, and less to keep the bird from getting away, as falconry birds are routinely (and as part of the sport) set free—the bond between bird and falconer serves as a much better leash than any leather or rope ever will; however, it is not always desirable that a bird be able to take flight at its own whim, and both on the glove and on the perch, jesses help ensure this. During hunting season (small game season for North American falconers), jesses are generally worn all season in the mews, and are often removed for the
Tether Tether A tether is a cord, fixture, or flexible attachment that anchors something movable to a reference point which may be fixed or moving. There are a number of applications for tethers: balloons, kites, tethered wind-energy conversion systems, anchors, tethered water-flow energy conversion systems, towing, animal constraint, spaceflight, and power-kiting. Tethering is also used to prevent the theft of a computer at a school or library. Tethers may break by various means; if a tether is a signal, then interruption by signal barriers breaks the tether. If the tether is a cord or rope, then upon reaching the breaking strength