Thanks Matilda Belle
I don't have an incubator and unfortunately none of the other hens are broody. My husband has run out and got a heat bulb and attached it to the brooder nest box we had ready to move them into once they've hatched (she's brooded in the main coop). We've put the injured chick in the brooder box with the heat lamp, hopefully that will do. She's sitting on the eggs ok, so just keep checking on her to see what happens. The injured chick is visibly damaged and unable to stand otherwise I'd try to reintroduce it tonight, but I think it'll have to be hand reared if it survives, I'm not confident it will, any advise?