Falconry training and technique two parts that twist freely, each with a metal hoop on the end. The swivel may be traditional, or modified. The modified swivel has much larger metal hoops than the traditional. While swivels have been made of cloth or other materials in the past, most modern falconers use metal swivels. See Falconer's knot for more information about tying off the bird to the glove. When using Aylmeri jesses, there are usually two sets of straps: the mews straps, for manning and tethering the bird, and flying straps. The flying straps are lighter and smaller for hunting; the mews straps are
Falconry training and technique is illegal in the UK, as is releasing a captive bred bird. In America, trapping or attempting to trap any native species of raptor is a federal crime unless the person doing the trapping is licensed. A falconry permit allows a falconer to trap certain birds at certain times of the year. A falconry bird taken from the nest as a downy bird still unable to fly (a fledgling) is called an 'eyass' (by misdivision of French "un niais" from Latin "nidiscus", from Latin "nidus" = "nest"). In addition to wild-taken eyass hawks, all captive bred hawks taken at this