We went out to put the ladies up for the night and about half of the flock was missing. After nearly an hour of searching we found all of the missing birds hiding very well and many playing dead. (We've never seen this behavior before) Eventually, Josh found Susan with only her neck flesh eaten. No damage to her head or the rest of her body. Just her neck eaten to the bone from shoulders to her head. This must have happened pretty quickly as she was still warm and we had already been outside looking for more than an hour. Any ideas or insight would be appreciated. Thanks.