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
Falconry level, falconers may apply for a Master Class license, which allows them to keep up to five wild raptors for falconry and an unlimited number of captively-produced raptors (all must be used for falconry). Certain highly experienced master falconers may also apply to possess golden eagles for falconry. Within the United States, a state's regulations are limited by federal law and treaties protecting raptors. Most states afford falconers an extended hunting season relative to seasons for archery and firearms, however species to be hunted, bag limits, and possession limits remain the same for both. No extended seasons for falconry exist