How are they doing? With any deep wounds, it would be good to use Vetericyn or a similar wound spray, or chlorhexidene, or betadine to clean wounds to disinfect them initially. Then use plain Neosporin or Triple Antibiotic Ointment twice a day after cleaning the wound. A lot depends on how much internal injuries have been done, and if there is any infection. I cannot offer advice on fixing a dislocated leg. That is best done by a vet, especially if bone is exposed. The deep wounds in the chicken could heal if there is not damage to air sacs. I would keep them isolated in a dog crate with food and water near and reachable. They may be in shock for awhile. By tomorrow I would try offering water with electrolytes, some wet and dry feed, and some chopped egg to tempt them to eat.
