a week ago, my chicken Peggyo was sitting in the coop with a huge bloody wound right above her vent. We kept her in the garage until it healed a couple days ago. Then we put her back, and she was fine. then yesterday night, another on of my hens, a red sex link, Carol, got an even worse wound in the exact same spot. She is currently in the garadge. Niether wound had any V shaped or picked feathers, and both chickens were close to the top of the pecking order. Both were everyday layers. We havent seen any predetors near the coop, but we have seen squirrels in the run. we are trying to keep them out. could a squirrel hurt a chicken? how are the chickens getting hurt and what should we do? Also, we have noticed the eggs of our chickens are all messed up. The yolks are grainy and the whites are runny. Is this because its cold outside or because of their injurys? or something else? Please help!