Yesterday when I went to check on the nesting boxes, all of them where clean and had all of the nesting straws in it. However, this morning I went to check on my hens and two nesting boxes had blood. The one on the bottom shelf was just a streak of dried blood here and there. The nesting box on the top was a blood bath. I think it may be one of my chicken that just started to lay... But it's strange because her eggs don't have blood spots on them. I do have one Australorp that has blood spots on her eggs from time to time. Would it be her? Could somebody help? What should I do? I know surely this amount of blood is not normal, and what signs should I look for to tell which chicken was it that was losing this much blood?