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 supposedly appropriate. This list, however, was mistaken in several respects. It can be seen that the relevance of the "Boke" to practical falconry past or present is extremely tenuous, and veteran British falconer Phillip Glasier dismissed it as "merely a formalised and rather fanciful listing of birds". A book about falconry published in 1973 says: There are several raptors used in falconry. They are typically classed as follows: Owls are also used, although they are far less common. In determining whether a species can or should be used for falconry, the species' behavior in a captive environment, its responsiveness to