I have a polish hen i recently discovered with heh feet, crest, and her left earlobe covered in blood. I can't find any injuries on her. She is still alive but very low energy. Does anyone know why she's like this? I couldn't find any corpses of anything, and her crop is empty so she didn't kill and eat a mouse, but my coop looks like a murder scene with a portion of the perch coated in blood. Please help!