which hybrid form of species are used for it?
Different falcon species are paired for production of hybrids. For example male sakers and female peregrines are paired to produce hybrids.
Falconry
he first hybrid falcons produced in captivity occurred in western Ireland when veteran falconer Ronald Stevens and John Morris put a male saker and a female peregrine into the same moulting mews for the spring and early summer, and the two mated and produced offspring.
what is referred to as pale crag martin? A small passerine bird. from where did its name originate? The genus name is derived from the Ancient Greek "ptuon", "a fan", referring to the shape of the opened tail, and Procne , a mythological girl who was turned into a swallow. The specific name "obsoleta" means "worn" in Latin. where is it found? Northern Africa to Middle East extending up to Pakistan and Afghanistan. what are its sub-species? UNANSWERABLE any species which hunts them? Peregrine falcon, Taita falcon, African hobby and wintering Eurasian hobby. what exactly is the first one? A widespread bird of prey. and the second one? It is another type of small falcon. how does it behave? It perches for long time, emerges to prey on birds with  fast, parrot-like wingbeats. Occasionally, it soars high. is the former one used in any kind of trained hunting process? Yes, in falconry. can you describe this process in a line? Falconry is the hunting of wild animals in their natural state and habitat by means of a trained bird of prey. from where did this originate? In Mesopotamia. which species were used for its contemporary form? Several types of raptors and at times owls. now which places in the world still practice it? The UK and the USA. is there any club for this? Yes, the British Falconers' Club and the North American Falconers' Association.
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Falconry [SEP] Hybrid falcons
Thus, naturally occurring hybridization is thought to be somewhat insignificant to gene flow in raptor species. The first hybrid falcons produced in captivity occurred in western Ireland when veteran falconer Ronald Stevens and John Morris put a male saker and a female peregrine into the same moulting mews for the spring and early summer, and the two mated and produced offspring. Captively bred hybrid falcons have been available since the late 1970s, and enjoyed a meteoric rise in popularity in North America and the UK in the 1990s. Hybrids were initially "created" to combine the horizontal speed and size of the gyrfalcon with the good disposition and aerial ability of the peregrine.