Jess (falconry) the bird, but the width is proportional to leg-length. Traditional jesses are made from a single length of leather, and slits are placed strategically along the jess to allow it to be looped through itself and around the ankle of the bird so that it fits comfortably but securely about and just above what would be the bird's ankle. With Aylmeri jesses, as created by Major Guy Aylmeri, the end of the jess is instead looped through itself repeatedly to form a "button", or knob at one end. The thin, pliable end of the jess is then threaded through an
Falconry and violent in every way." They are well known in falconry use both in Europe and North America. The northern goshawk has been trained for falconry for hundreds of years, taking a variety of birds and mammals. Other popular "Accipiter"s used in falconry include: the Cooper's hawk and sharp-shinned hawk in North America and the European sparrowhawk in Europe and Eurasia. New Zealand is likely to be one of the few countries to use a harrier species for falconry, there falconers successfully hunt with the Australasian harrier ("Circus approximans"). The genus "Falco" is found worldwide and has occupied a central