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 are three kinds of falconry licenses in the United States, typically Apprentice class, General class, and Master class. "See Hack (falconry) and Falconry training and technique." Falconry is currently practiced in many countries around the world. The falconer's traditional choice of bird is the northern goshawk and peregrine falcon. In contemporary falconry in both North America and the UK they remain popular, although the Harris hawk and red-tailed hawk are likely more widely used. The northern goshawk and the golden eagle are more commonly used in Eastern Europe than elsewhere. In the Middle East, the saker falcon is the most