I came home yesterday afternoon to find one of my hens all bloody with almost her entire back-of-the-neck exposed, gone, no skin. I couldn't find blood or feathers anywhere around the pen. She is in sick-bay in the house where it is warm, I hope she can heal with TLC and Vetericyn. Any ideas what might have done this to her? We have a very secure hen house where they roost at night but the pen is not completely secure so I imagine it was some sort of varmit or another. Broad daylight. I am just amazed she is still alive.