Hi, can you scramble some yolk, drizzle some maple syrup on it and try to tuck a few chunks into her beak. Watch her swallow before giving more. I would also cook up a small about of ground beef to get her iron up. Can you offer cucumber or watermelon for hydration. Poor sweet girl 😢
I used premo poultry spray to get rid of lice on my one chicken. She was sick and got infested because she wasn't dust bathing. I would treat that asap. Keep offering sweetened water to get her blood sugar up. See if she'll eat some cooked chicken.