Last year we had a chick with a deformed scissor-beak, and she was thinner and smaller because she had trouble eating and drinking. She was also picked on. I read that some minor scissor-beaks can apparently be trimmed, but our chick's beak was too deformed. Our chicken vet recommended putting her down. I don't know whether that's the sort of deformity your friend's chick has, but that was our situation.
Last year we had a chick with a deformed scissor-beak, and she was thinner and smaller because she had trouble eating and drinking. She was also picked on. I read that some minor scissor-beaks can apparently be trimmed, but our chick's beak was too deformed. Our chicken vet recommended putting her down. I don't know whether that's the sort of deformity your friend's chick has, but that was our situation.