I have a young hen with a strange neck. She's about 7 months old and just a couple days ago she stayed in a nesting box all day. I noticed her but thought it was one in the morning and another of the same breed in the afternoon. I saw her again the next day in the box. An hour later I went to check again. This time I pulled her out. Her neck is in an S shape. Head down on the shoulders, front of the neck poked out. She seems to not be able to move it on her own. I can move it, straighten it out. She does not seem to get upset when I do this. She has been staying in a lot but does go outside with everybody else. It looks like she cannot eat. She walks up to the food or scratch and bends down to look but does not pick anything up. I've seen her drink once, it was awkward. Her crop is empty. She does not have bad breath. I pried her beak open and put a piece of food in to see what she would do. She just spit it out. She walks slowly and looks weird because her head is resting on her shoulders. What could be wrong with her? I don't see any injuries.