I noticed my Delaware hen was acting different. She was always one of the alpha hens, bold and aggressive in claiming her share of food. She apparently put her head through a large closed cable tie, and couldn’t get it off. The friction appears to have rubbed off some neck feathers, and there may be a friction abrasion on the back of her neck. I think it may have been on her for 3 days before I noticed it. I removed it, and she is a little better. She eats and drinks water, but whereas she used to be a top hen, now she is on the bottom rank. She looks harassed rather than bold. Some of the lower ranking hens now chase her off when I bring food to the flock. I have not seen Her pecked. I had the thought to remove her from the flock to allow her to heal. Is this a good idea? See photos.