Im not sure what happened. But she is bare all over her back and has a tooth looking mark.should I keep her inside or leave her with the others? Im just worried they will peck at it.
I'd probably clean any open wounds really well and apply Neosporin. Keep her in a nice quiet, dark, warm place at least over night and if she's looking ok tomorrow, spray with exposed area well with Blukote (so they don't see any blood or wounds) and put her back in with the others. I had one of my white leghorns attacked and she had similar wounds - she's fine now!