Hi everyone. This is my first time hatching eggs. I had two babies hatch last night. When they got fluffy I moved them to the brooder this morning. They both looked fine. I left them for a couple of hours and when I came back I noticed one keeps closing it's eye. He keeps one side open, but the other closed. Both are already eating and moving around fine. I have pine shavings as the bedding. Is this something to be worried about or is it likely it's just irritated?