Hello, We are from TN and very new to chickens. Got our girls in March and then traded a very mean rooster for 2 new hens about 3 weeks ago. I have kept the new ones apart from the older ones and just put them together about 3 days ago. My question: tonight when I went to take care of them, one of our older hens doesn't seem to have any eyes. It's like they are closed. No blood, no signs of distress. I'm wondering if she has been like this and I haven't noticed. They free range during the day and go into the coop at night. I've always had what I call my "slow" girl, she just doesn't seem to get anywhere on time. Any help with this would be appreciated. Thanks.