Ok, my Naragansette hen looks like she is going through a HARD moult - and now of all times! It is in low 20's at night and she roosts outside. She has NO feathers on back of neck, belly, under, chest - and loosing the rest. She was SHIVERING today - I finally stuck her in a crate in my garge for the night. What do I do? Might she be sick?