Jess (falconry) Jess (falconry) A jess (plural "jesses") is a thin strap, traditionally made from leather, used to tether a hawk or falcon in falconry. Jesses allow a falconer to keep control of a bird while it is on the glove or in training, and allow a bird to be secured on a perch outside its aviary. Jesses come in various types: Jesses are generally made from strips of leather as thin as possible, for which purpose kangaroo leather has become increasingly popular over the years, as it is thin, light-weight and extremely durable with proper care. Jess size varies depending on
Creance Creance A creance is a long light cord used to tether a flying hawk or falcon during training in falconry. They are used both when the bird is young, and when the bird has been taken out of the aviary for a moult or other reasons. The creance itself is thin, designed to be of as little inconvenience to the bird as possible. It's threaded through the swivel and tied with a falconer's knot. The creance typically extends to around 25 metres (82 feet), at which point the bird should be ready to fly free (without the use of the