neck twisting

One of the malnourished chicks I took in suddenly became ill. She has a lot of mucus in her mouth at times, which is clear, and it soaks her pillow when she sleeps. She sleeps a lot and can’t warm herself up so I’ve had her wrapped in a blanket. When I first brought her inside yesterday, she...

Help, my silkie hen is not looking good. She is twisting her head and running into things can't walk properly and stumbles around. Please help. She is mothering 7 baby chicks, the chicks are all fine.