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 gull and pigeon population. Falconry centres or birds of prey centres house these raptors. They are responsible for many aspects of bird of prey conservation (through keeping the birds for education and breeding). Many conduct regular flying demonstrations and educational talks, and are popular with visitors worldwide. Such centres may also provide falconry courses, hawk walks, displays and other experiences with these raptors - see links at bottom of page for details. In 2010, UNESCO inscribed falconry as a living human heritage element of eleven countries, including United Arab Emirates, Belgium, Czech Republic, France, Republic of Korea, Mongolia, Morocco, Qatar,