Hey Glen. :)
No frostbite here this winter! The blood was smeared in the corner, along the back wall, over the roosts, and then a little on the floor. I was thinking that possibly one of the Nov. babies was playing in the nest and got attacked by a bigger hen wanting to lay. I didn't think about...
A couple days ago, one of our eggs had blood on the shell and there was blood all over the walls in the nest box. I checked the vent on all the chickens, and they all seem fine. They're all eating well and acting normal. But the next day there was another bloody egg. What could be causing this?