Ouch. Can you tell if there are internal injuries? For starters, she needs to be in a warm quiet place, although if you can make it so she can hear and/ or see her friends, I think that is calming to the injured bird. If she were mine I would just leave her alone for a bit, and let her rest and calm down. She is probably in shock. How bad is her beak, do you think it is possible she can eat, or, more importantly, drink? Do you know for sure her leg is broken? It is just hard to say what to do..if she is looking around and seems pretty alert, you could try tempting her with some thing like minced up tomato or applesauce and crumbles, or bread soaked in buttermilk, and see how she does. You could also try splinting the leg, depending on how badlly it's broken and where the break is. Your best bet really would be to take her to a vet, if you can. Even if you can't find an avian vet, sometimes a regular 4 leg vet will look at a bird with injuries.